Bibliography. [1] J.A. Bondy and U.S.R. Murty, Graph Theory, Springer Graduate Texts in Mathematics

Size: px
Start display at page:

Download "Bibliography. [1] J.A. Bondy and U.S.R. Murty, Graph Theory, Springer Graduate Texts in Mathematics"

Transcription

1 Bibliography [1] J.A. Bondy and U.S.R. Murty, Graph Theory, Springer Graduate Texts in Mathematics 244, (2008). [2] B. Bollobas, Modern Graph Theory, Springer Graduate Texts in Mathematics 184, (1998). [3] R. Diestel, Graph Theory, Springer Graduate Texts in Mathematics 173, (2000). A vailable free at [4] D.B. West, Introduction to Graph Theory, 2nd Edition, Prentice Hall, (2000). [5] P.J. Cameron, Combinatorics: Topics, Techniques, Algorithms, Cambridge University Press, (1996). [6] J.H. van Lint and R.M. Wilson, A Course in Combinatorics, Cambridge University Press, (1992). [7] R. Stanley, Enumerative Combinatorics, Vol. I and Vol. II, Cambridge University Press, (2000/2001). [8] R. Bhatia, Matrix Analysis, Springer Graduate Texts in Mathematics 169, (1996). [9] L. Lovlisz, Combinatorial Problems and Exercises, AMS Chelsea Publishing, 2nd Edition, (2007). [10] A. Herzberg and M.R. Murty, Sudoku Puzzles and Chromatic Polynomials, Notices of the Amer. Math. Society, 54(2007), no. 6, [11] R. Bhatia, Perturbation Bounds for Matrix Eigenvalues, SIAM Classics in Applied Mathematics, (2007). [12] C. Godsil and G. Royle, Algebraic Graph Theory, Springer Graduate Texts in Mathematics 207, (2001). [13] F.R.K. Chung, Spectral Graph Theory, CBMS Regional Conference Series in Mathematics, (1997). [14] S. Hoory, N. Linial and A. Wigderson, Expander Graphs and their Applications, Bulletin of the AMS, Volume 43, Number 4, (2006), 43956l. [15] N. Alon and J. Spencer, The Probabilistic Method, Wiley-Interscience, 2nd Edition, (2000). [16] M.R. Murty, Ramanujan Graphs, Journal of the Ramanujan Math. Society, 18, No.1, (2003), [17] S.M. Cioabii and M.R. Murty, Expander Graphs and Gaps between Primes, Forum Mathematicum, Volume 20, Issue 4, (2008),

2 Index adjacency matrix, 33 Amitsur,39 Appel,3 Aryabhata, 5 Bell, 20 Bell number, 20, 27 Berge, 95 Bernoulli number, 32 Bernoulli, Jakob, 32 Bhaskara, 12 bijective function, 10 binary code, 113 Binet, 17 binomial coefficient, 11 binomial theorem, 12 Birkhoff, 90 Bose, 89 bridge, 44 Brooks, 62 Bruck,107 Bruhat order, 53 Burnside, 76 Catalan, 17 Catalan number, 17 Cauchy, 76 Cayley, 4, 42, 121 center, 51, 74 centralizer, 74 characteristic polynomial, 34 characteristic vector, 10 Chowla, 107 chromatic number, 4, 61 chromatic polynomial, 61 circuit, 1, 5 Eulerian, 9 circulant graph, 159 matrix, 158 class equation, 73 classical adjoint, 45 code, 113 codeword, 113 complement, 158 complete graph conjecture, 125 component odd, 94 contraction, 44 cost, 47 critical, 65 cut edge, 44 cycle, 3, 5 cycle index, 78 De Moivre, 13 De Morgan, 3, 121 decomposition, 130 degree, 2 even, 2 odd, 2 derangement, 25 derangements, 13 diameter, 38, 142 digraph, 7, 8 Dilworth, 136 direct product poset, 53 distance, 5 dodecahedron, 131 doubly stochastic,

3 INDEX 171 eccentricity, 39, 51 edge, 1, 2 edge chromatic number, 127 edge-boundary, 154 edge-connectivity, 95 edge-expansion, 154 Egervary, 91 eigenvalue, 34 eigenvector, 34 embedded graph, 118 endpoints, 2 Erdos, 136, 138 error-correcting code, 114 Euler, 1, 17, 18, 39, 89, 130 euler, 118 Euler, Leonhard, 6 Eulerian, 6 expander, 154 exponential generating function, 20 face, 118 factor, 130 Fermat, 137 fiber, 27 Fibonacci, 16 Fibonacci number, 16 forest, 41 formal power series, 18 four colour theorem, 3 Frobenius, 76 generalized commutator, 39 generating function, 19 genus, 123 graph, 1, 2 k-connected, 96 k-edge-connected, 96 acyclic, 41 bipartite, 3, 36, 37 complete, 3 connected, 5, 95 directed, 7, 8 disconnected, 95 finite, 2 simple, 2 weighted, 47 greatest common divisor, 30 greedy, 62 greedy algorithm, 47 group automorphism, 85 group action, 72 Gupta, 127 Guthrie, 3, 121 Haken, 3 Hall, Philip, 86 Hamilton, 3 Hamiltonian cycle, 130 Hamming distance, 113 Hasse diagram, 52 head,8 Heawood, 4, 121 Hierholzer, Karl, 6 Hungarian algorithm, 91 incidence algebra, 53 incidence matrix, 33, 105 inclusion-exclusion, 43 indegree, 8 independent path, 96 independent set, 3 induction, 4 injective function, 10 inverse, 10 invertible, 10 involution, 15, 32 isomorphic poset, 55 isomorphism, 34 job assignment, 4 Konig, 7, 91, 129 Konigsberg, 1 Kempe, 4, 121 Kirchhoff, 44 Kneser graph, 71 knight tour, 131 Kruskal,47 Kuratowski, 120 ladder Mobius, 159 Lagrange, 76 Laplacian, 40, 44 Latin rectangle, 88 Latin square, 88

4 172 INDEX lattice, 54 leaf, 41 line graph, 40 linear code, 113 linear recurrence relation, 16 loop, 2 Mobius, 123 Mobius function, 53 marriage theorem, 86 matching, 86 perfect, 86 matrix-tree theorem, 44 minimal polynomial, 37 multiple edge, 2 neighbour, 2 network,4 Newton, 12 normalizer, 75 odd girth, 40 orbit, 73 Orbit-Stabilizer formula, 73 Ore, 131 orientation, 40 orthogonal Latin square, 89 outdegree, 8 outer face, 118 P61ya,78 Paley, 158 Parker, 89 Pascal, 12 path, 5, 85 permutation, 10 parity, 11 signature, 11 permutation matrix, 34, 90 Petersen graph, 120 pigeonhole principle, 134 Pingala, 12 planar graph, 118 proper, 87 proper colouring, 59 radius, 39 Ramsey, 134 ramsey, 137 Ramsey number, 136 rank, 35 Rayleigh-Ritz quotient, 64 reduction, 53 Ringel, 125 routing, 4 Ryser, 107 scheduling, 4, 60 Schur, 137 Segner, 17, 18 Shrikhande, 89 spanning subgraph, 44 spanning tree, 44 minimum, 47 stabilizer, 73 stable set, 3 Stirling, 12 Stirling formula, 19 Stirling number of the first kind, 26 Stirling number of the second kind, 27 Stirling's formula, 13 strongly regular, 158 subgraph, 65 surjective function, 10, 25 Sylow subgroup, 75 symmetric design, 107 symmetric group, 10 system of common representatives, 89 system of distinct representatives, 88 Szekeres, 66 tail, 8 Tarry, 89 thirty-six officers, 89 torus, 123 tournament, 133 trail, 5 Eulerian, 9 transposition, 11 transversal, 91 traveling salesman problem, 130 tree, 41 Tutte,94 valence, 1, 2 vertex, 1,2 vertex-connectivity, 95 Vizing, 127

5 INDEX 173 Von Neumann, 90 walk,5 even, 5 length, 5 odd, 5 weight, 4, 113 weighted cover, 91 Wiener index, 50 Wilf, Herbert, 66 Youngs, 125 zeta function, 53

6 Texts and Readings in Mathematics 1. R. B. Bapat: Linear Algebra and Linear Models (Second Edition) 2. Rajendra Bhatia: Fourier Series (Second Edition) 3. C. Musili: Representations of Finite Groups 4. H. Helson: Linear Algebra (Second Edition) 5. D. Sarason: Complex Function Theory (Second Edition) 6. M. G. Nadkarni: Basic Ergodic Theory (Second Edition) 7. H. Helson: Harmonic Analysis (Second Edition) 8. K. Chandrasekharan: A Course on Integration Theory 9. K. Chandrasekharan: A Course on Topological Groups 10. R. Bhatia (ed.): Analysis, Geometry and Probability 11. K. R. Davidson: C* - Algebras by Example 12. M. Bhattacharjee et al.: Notes on Infinite Permutation Groups 13. V. S. Sunder: Functional Analysis - Spectral Theory 14. V. S. Varadarajan: Algebra in Ancient and Modern Times 15. M. G. Nadkarni: Spectral Theory of Dynamical Systems 16. A. Borel: Semisimple Groups and Riemannian Symmetric Spaces 17. M. Marcolli: Seiberg - Witten Gauge Theory 18. A. Bottcher and S. M. Grudsky: Toeplitz Matrices, Asymptotic Linear Algebra and Functional Analysis 19. A. R. Rao and P. Bhimasankaram: Linear Algebra (Second Edition) 20. C. Musili: Algebraic Geometry for Beginners 21. A. R. Rajwade: Convex Polyhedra with Regularity Conditions and Hilbert's Third Problem 22. S. Kumaresan: A Course in Differential Geometry and Lie Groups 23. Stef Tijs: Introduction to Game Theory 24. B. Sury: The Congruence Subgroup Problem 25. R. Bhatia (ed.): Connected at Infinity 26. K. Mukherjea: Differential Calculus in Normed Linear Spaces (Second Edition) 27. Satya Deo: Algebraic Topology: A Primer (Corrected Reprint) 28. S. Kesavan: Nonlinear Functional Analysis: A First Course 29. S. Szab6: Topics in Factorization of Abelian Groups 30. S. Kumaresan and G. Santhanam: An Expedition to Geometry 31. D. Mumford: Lectures on Curves on an Algebraic Surface (Reprint) 32. J. W. Milnor and J. D. Stasheff: Characteristic Classes (Reprint) 33. K. R. Parthasarathy: Introduction to Probability and Measure (Corrected Reprint) 34. A. Mukherjee: Topics in Differential Topology 35. K. R. Parthasarathy: Mathematical Foundations of Quantum Mechanics 36. K. B. Athreya and S. N. Lahiri: Measure Theory 37. Terence Tao: Analysis I (Second Edition) 38. Terence Tao: Analysis II (Second Edition)

7 39. W. Decker and C. Lossen: Computing in Algebraic Geometry 40. A. Goswami and B. V. Rao: A Course in Applied Stochastic Processes 41. K. B. Athreya and S. N. Lahiri: Probability Theory 42. A. R. Rajwade and A. K. Bhandari: Surprises and Counterexamples in Real Function Theory 43. G. H. Golub and C. F. Van Loan: Matrix Computations (Reprint of the Third Edition) 44. Rajendra Bhatia: Positive Definite Matrices 45. K. R. Parthasarathy: Coding Theorems of Classical and Quantum Information Theory 46. C. S. Seshadri: Introduction to the Theory of Standard Monomials 47. Alain Connes and Matilde Marcolli: Noncommutative Geometry, Quantum Fields and Motives 48. Vivek S. Borkar: Stochastic Approximation: A Dynamical Systems Viewpoint 49. B. J. Venkatachala: Inequalities: An Approach Through Problems 50. Rajendra Bhatia: Notes on Functional Analysis 51. A. Clebsch (ed.): Jacobi's Lectures on Dynamics (Second Revised Edition) 52. S. Kesavan: Functional Analysis 53. V. Lakshmibai and Justin Brown: Flag Varieties: An Interplay of Geometry, Combinatorics, and Representation Theory 54. S. Ramasubramanian : Lectures on Insurance Models

Index. <p,2. 7r-system, 2 3,86 9\,86

Index. <p,2. 7r-system, 2 3,86 9\,86 Index 3,86 9\,86 (M, d), m, 12 BMP,345 Bd,105 BdJ,142 CLT,283 CF, 8;,34 Cr, Cr,514 E*, E*,3 FCLT,336 FLIL,370 LIL,367 MC,458 Rk Euclidean k-space, 2 Rk,!Jlk, C, Cff, 11 SBMP,427 SLLN,274 Ll~, 22 {:},6

More information

A Course in Combinatorics

A Course in Combinatorics A Course in Combinatorics J. H. van Lint Technical Universüy of Eindhoven and R. M. Wilson California Institute of Technology H CAMBRIDGE UNIVERSITY PRESS CONTENTS Preface xi 1. Graphs 1 Terminology of

More information

[58] J.J.Watkins, Across the Board; The Mathematics of Chessboard Problems, Universities

[58] J.J.Watkins, Across the Board; The Mathematics of Chessboard Problems, Universities References [1] M. Aigner, Combinatorial Theory, Springer-Verlag (1997). [2] M. Aigner, Moving into the Desert with Fibonacci, Math. Magazine, Volume 70, No.1 (Feb 1997), pages 11-20. [3] M. Artin, Algebra,

More information

Book announcements. Sukumar Das Adhikari ASPECTS OF COMBINATORICS AND COMBINATORIAL NUMBER THEORY CRC Press, Florida, 2002, 156pp.

Book announcements. Sukumar Das Adhikari ASPECTS OF COMBINATORICS AND COMBINATORIAL NUMBER THEORY CRC Press, Florida, 2002, 156pp. Discrete Mathematics 263 (2003) 347 352 www.elsevier.com/locate/disc Book announcements Sukumar Das Adhikari ASPECTS OF COMBINATORICS AND COMBINATORIAL NUMBER THEORY CRC Press, Florida, 2002, 156pp. Notations

More information

ABSTRACT ALGEBRA WITH APPLICATIONS

ABSTRACT ALGEBRA WITH APPLICATIONS ABSTRACT ALGEBRA WITH APPLICATIONS IN TWO VOLUMES VOLUME I VECTOR SPACES AND GROUPS KARLHEINZ SPINDLER Darmstadt, Germany Marcel Dekker, Inc. New York Basel Hong Kong Contents f Volume I Preface v VECTOR

More information

BASIC GRAPH THEORY. SUB CODE: 09MAT01 Total hours 52

BASIC GRAPH THEORY. SUB CODE: 09MAT01 Total hours 52 SYLLABUS For the course work syllabus recommended by the Guide for doing Ph.D in the Department of Mathematics, Sri Siddhartha Institute of Technology under SSU, Tumkur. BASIC GRAPH THEORY SUB CODE: 09MAT01

More information

MATH 363: Discrete Mathematics

MATH 363: Discrete Mathematics MATH 363: Discrete Mathematics Learning Objectives by topic The levels of learning for this class are classified as follows. 1. Basic Knowledge: To recall and memorize - Assess by direct questions. The

More information

TEXTS AND READINGS IN MATHEMATICS 22. A Course in Differential Geometry and Lie Groups

TEXTS AND READINGS IN MATHEMATICS 22. A Course in Differential Geometry and Lie Groups TEXTS AND READINGS IN MATHEMATICS 22 A Course in Differential Geometry and Lie Groups Texts and Readings in Mathematics Advisory Editor C. S. Seshadri, Chennai Mathematical Institute, Chennai. Managing

More information

(a) How many pairs (A, B) are there with A, B [n] and A B? (The inclusion is required to be strict.)

(a) How many pairs (A, B) are there with A, B [n] and A B? (The inclusion is required to be strict.) 1 Enumeration 11 Basic counting principles 1 June 2008, Question 1: (a) How many pairs (A, B) are there with A, B [n] and A B? (The inclusion is required to be strict) n/2 ( ) n (b) Find a closed form

More information

Bibliography. Groups and Fields. Matrix Theory. Determinants

Bibliography. Groups and Fields. Matrix Theory. Determinants Bibliography Groups and Fields Alperin, J. L.; Bell, Rowen B. Groups and representations. Graduate Texts in Mathematics, 162. Springer-Verlag, New York, 1995. Artin, Michael Algebra. Prentice Hall, Inc.,

More information

AS 1 Math Structure for BSc (Ed) (Primary 2 CS Track) AS 1 Math Structure for BSc (Ed) (Secondary)

AS 1 Math Structure for BSc (Ed) (Primary 2 CS Track) AS 1 Math Structure for BSc (Ed) (Secondary) ACADEMIC SUBJECT: MATHEMATICS Table 1: AS 1 Math Structure for BSc (Ed) (Primary 2 CS Track) AS 1 Math Structure for BSc (Ed) (Secondary) Year 1 2 3 4 Course Code Title Course Category No. of AUs Prerequisites

More information

are the q-versions of n, n! and . The falling factorial is (x) k = x(x 1)(x 2)... (x k + 1).

are the q-versions of n, n! and . The falling factorial is (x) k = x(x 1)(x 2)... (x k + 1). Lecture A jacques@ucsd.edu Notation: N, R, Z, F, C naturals, reals, integers, a field, complex numbers. p(n), S n,, b(n), s n, partition numbers, Stirling of the second ind, Bell numbers, Stirling of the

More information

Memorial University Department of Mathematics and Statistics. PhD COMPREHENSIVE EXAMINATION QUALIFYING REVIEW MATHEMATICS SYLLABUS

Memorial University Department of Mathematics and Statistics. PhD COMPREHENSIVE EXAMINATION QUALIFYING REVIEW MATHEMATICS SYLLABUS Memorial University Department of Mathematics and Statistics PhD COMPREHENSIVE EXAMINATION QUALIFYING REVIEW MATHEMATICS SYLLABUS 1 ALGEBRA The examination will be based on the following topics: 1. Linear

More information

Eigenvalues, random walks and Ramanujan graphs

Eigenvalues, random walks and Ramanujan graphs Eigenvalues, random walks and Ramanujan graphs David Ellis 1 The Expander Mixing lemma We have seen that a bounded-degree graph is a good edge-expander if and only if if has large spectral gap If G = (V,

More information

Oral Qualifying Exam Syllabus

Oral Qualifying Exam Syllabus Oral Qualifying Exam Syllabus Philip Matchett Wood Committee: Profs. Van Vu (chair), József Beck, Endre Szemerédi, and Doron Zeilberger. 1 Combinatorics I. Combinatorics, Graph Theory, and the Probabilistic

More information

REVIEW QUESTIONS. Chapter 1: Foundations: Sets, Logic, and Algorithms

REVIEW QUESTIONS. Chapter 1: Foundations: Sets, Logic, and Algorithms REVIEW QUESTIONS Chapter 1: Foundations: Sets, Logic, and Algorithms 1. Why can t a Venn diagram be used to prove a statement about sets? 2. Suppose S is a set with n elements. Explain why the power set

More information

ALGEBRAIC COMBINATORICS. c1993 C. D. Godsil

ALGEBRAIC COMBINATORICS. c1993 C. D. Godsil ALGEBRAIC COMBINATORICS c1993 C. D. Godsil To Gillian Preface There are people who feel that a combinatorial result should be given a \purely combinatorial" proof, but I am not one of them. For me the

More information

Series Editor KENNETH H. ROSEN INDUCTION THEORY AND APPLICATIONS. of Manitoba. University. Winnipeg, Canada. CRC Press. Taylor StFrancis Group

Series Editor KENNETH H. ROSEN INDUCTION THEORY AND APPLICATIONS. of Manitoba. University. Winnipeg, Canada. CRC Press. Taylor StFrancis Group DISCIIETE MATHEMATICS AND ITS APPLICATIONS Series Editor KENNETH H. ROSEN HANDBOOK OF MATHEMATICAL INDUCTION THEORY AND APPLICATIONS David S. Gunderson University of Manitoba Winnipeg, Canada CRC Press

More information

The cycle polynomial of a permutation group

The cycle polynomial of a permutation group The cycle polynomial of a permutation group Peter J. Cameron School of Mathematics and Statistics University of St Andrews North Haugh St Andrews, Fife, U.K. pjc0@st-andrews.ac.uk Jason Semeraro Department

More information

Mathematics (MATH) MATH 098. Intermediate Algebra. 3 Credits. MATH 103. College Algebra. 3 Credits. MATH 104. Finite Mathematics. 3 Credits.

Mathematics (MATH) MATH 098. Intermediate Algebra. 3 Credits. MATH 103. College Algebra. 3 Credits. MATH 104. Finite Mathematics. 3 Credits. Mathematics (MATH) 1 Mathematics (MATH) MATH 098. Intermediate Algebra. 3 Credits. Properties of the real number system, factoring, linear and quadratic equations, functions, polynomial and rational expressions,

More information

Preliminaries and Complexity Theory

Preliminaries and Complexity Theory Preliminaries and Complexity Theory Oleksandr Romanko CAS 746 - Advanced Topics in Combinatorial Optimization McMaster University, January 16, 2006 Introduction Book structure: 2 Part I Linear Algebra

More information

Mathematics (MA) Mathematics (MA) 1. MA INTRO TO REAL ANALYSIS Semester Hours: 3

Mathematics (MA) Mathematics (MA) 1. MA INTRO TO REAL ANALYSIS Semester Hours: 3 Mathematics (MA) 1 Mathematics (MA) MA 502 - INTRO TO REAL ANALYSIS Individualized special projects in mathematics and its applications for inquisitive and wellprepared senior level undergraduate students.

More information

Vector fields and phase flows in the plane. Geometric and algebraic properties of linear systems. Existence, uniqueness, and continuity

Vector fields and phase flows in the plane. Geometric and algebraic properties of linear systems. Existence, uniqueness, and continuity Math Courses Approved for MSME (2015/16) Mth 511 - Introduction to Real Analysis I (3) elements of functional analysis. This is the first course in a sequence of three: Mth 511, Mth 512 and Mth 513 which

More information

B.C.S.Part I Mathematics (Sem.- I & II) Syllabus to be implemented from June 2013 onwards.

B.C.S.Part I Mathematics (Sem.- I & II) Syllabus to be implemented from June 2013 onwards. B.C.S.Part I Mathematics (Sem.- I & II) Syllabus to be implemented from June 2013 onwards. 1. TITLE: Subject Mathematics 2. YEAR OF IMPLEMENTATION : Revised Syllabus will be implemented from June 2013

More information

List of topics for the preliminary exam in algebra

List of topics for the preliminary exam in algebra List of topics for the preliminary exam in algebra 1 Basic concepts 1. Binary relations. Reflexive, symmetric/antisymmetryc, and transitive relations. Order and equivalence relations. Equivalence classes.

More information

Topics in Graph Theory

Topics in Graph Theory Topics in Graph Theory September 4, 2018 1 Preliminaries A graph is a system G = (V, E) consisting of a set V of vertices and a set E (disjoint from V ) of edges, together with an incidence function End

More information

12.1 Chromatic Number

12.1 Chromatic Number 12.1 Chromatic Number History of Graph Colorings Theorem The Four Color Theorem: Any planar graph can be colored in at most four colors. But, it wasn t always the Four Color Theorem... Four Color Conjecture

More information

The P versus NP Problem. Ker-I Ko. Stony Brook, New York

The P versus NP Problem. Ker-I Ko. Stony Brook, New York The P versus NP Problem Ker-I Ko Stony Brook, New York ? P = NP One of the seven Millenium Problems The youngest one A folklore question? Has hundreds of equivalent forms Informal Definitions P : Computational

More information

GRAPHS & DIGRAPHS 5th Edition. Preface to the fifth edition

GRAPHS & DIGRAPHS 5th Edition. Preface to the fifth edition GRAPHS & DIGRAPHS 5th Edition Gary Chartrand Western Michigan University Linda Lesniak Drew University Ping Zhang Western Michigan University Preface to the fifth edition Since graph theory was considered

More information

A quasisymmetric function generalization of the chromatic symmetric function

A quasisymmetric function generalization of the chromatic symmetric function A quasisymmetric function generalization of the chromatic symmetric function Brandon Humpert University of Kansas Lawrence, KS bhumpert@math.ku.edu Submitted: May 5, 2010; Accepted: Feb 3, 2011; Published:

More information

Unit I (Logic and Proofs)

Unit I (Logic and Proofs) SUBJECT NAME SUBJECT CODE : MA 6566 MATERIAL NAME REGULATION : Discrete Mathematics : Part A questions : R2013 UPDATED ON : April-May 2018 (Scan the above QR code for the direct download of this material)

More information

Discrete mathematics , Fall Instructor: prof. János Pach

Discrete mathematics , Fall Instructor: prof. János Pach Discrete mathematics 016-017, Fall Instructor: prof. János Pach - covered material - Lecture 1. Counting problems To read: [Lov]: 1.. Sets, 1.3. Number of subsets, 1.5. Sequences, 1.6. Permutations, 1.7.

More information

Square 2-designs/1. 1 Definition

Square 2-designs/1. 1 Definition Square 2-designs Square 2-designs are variously known as symmetric designs, symmetric BIBDs, and projective designs. The definition does not imply any symmetry of the design, and the term projective designs,

More information

Tribhuvan University Institute of Science and Technology Micro Syllabus

Tribhuvan University Institute of Science and Technology Micro Syllabus Tribhuvan University Institute of Science and Technology Micro Syllabus Course Title: Discrete Structure Course no: CSC-152 Full Marks: 80+20 Credit hours: 3 Pass Marks: 32+8 Nature of course: Theory (3

More information

Course Contents. Prerequisite : MATH 140

Course Contents. Prerequisite : MATH 140 Course Contents MATH 140 : Introduction to Mathematics (E) 2 (2+0+0) credit hours Linear equations and applications, linear inequalities, absolute value in equations and inequalities, complex numbers,

More information

Course Contents. L space, eigen functions and eigen values of self-adjoint linear operators, orthogonal polynomials and

Course Contents. L space, eigen functions and eigen values of self-adjoint linear operators, orthogonal polynomials and Course Contents MATH5101 Ordinary Differential Equations 4(3+1) Existence and uniqueness of solutions of linear systems. Stability Theory, Liapunov method. Twodimensional autonomous systems, oincare-bendixson

More information

Discrete Mathematics

Discrete Mathematics Outline Applied Mathematics Division Department of Mathematical Sciences University of Stellenbosch, South Africa Hons Program Presentation October 10, 2011 Outline Outline 1 2 3 4 5 Outline 1 2 3 4 5

More information

On Brooks Coloring Theorem

On Brooks Coloring Theorem On Brooks Coloring Theorem Hong-Jian Lai, Xiangwen Li, Gexin Yu Department of Mathematics West Virginia University Morgantown, WV, 26505 Abstract Let G be a connected finite simple graph. δ(g), (G) and

More information

Permutation groups; Cyclic decomposition, Alternating group An and simplicity of An linear groups

Permutation groups; Cyclic decomposition, Alternating group An and simplicity of An linear groups Paper I Algebra II Group Theory: Action of groups, Sylow s theorem, applications, groups of order p, p 2, pq, where p and q are prime numbers: groups of order = 15; Permutation groups; Cyclic decomposition,

More information

Random Lifts of Graphs

Random Lifts of Graphs 27th Brazilian Math Colloquium, July 09 Plan of this talk A brief introduction to the probabilistic method. A quick review of expander graphs and their spectrum. Lifts, random lifts and their properties.

More information

9 - The Combinatorial Nullstellensatz

9 - The Combinatorial Nullstellensatz 9 - The Combinatorial Nullstellensatz Jacques Verstraëte jacques@ucsd.edu Hilbert s nullstellensatz says that if F is an algebraically closed field and f and g 1, g 2,..., g m are polynomials in F[x 1,

More information

Properly colored Hamilton cycles in edge colored complete graphs

Properly colored Hamilton cycles in edge colored complete graphs Properly colored Hamilton cycles in edge colored complete graphs N. Alon G. Gutin Dedicated to the memory of Paul Erdős Abstract It is shown that for every ɛ > 0 and n > n 0 (ɛ), any complete graph K on

More information

Course Code: MTH-S101 Breakup: 3 1 0 4 Course Name: Mathematics-I Course Details: Unit-I: Sequences & Series: Definition, Monotonic sequences, Bounded sequences, Convergent and Divergent Sequences Infinite

More information

Matching Polynomials of Graphs

Matching Polynomials of Graphs Spectral Graph Theory Lecture 25 Matching Polynomials of Graphs Daniel A Spielman December 7, 2015 Disclaimer These notes are not necessarily an accurate representation of what happened in class The notes

More information

Notation Index. gcd(a, b) (greatest common divisor) NT-16

Notation Index. gcd(a, b) (greatest common divisor) NT-16 Notation Index (for all) B A (all functions) B A = B A (all functions) SF-18 (n) k (falling factorial) SF-9 a R b (binary relation) C(n,k) = n! k! (n k)! (binomial coefficient) SF-9 n! (n factorial) SF-9

More information

STUDY GUIDE FOR THE WRECKONING. 1. Combinatorics. (1) How many (positive integer) divisors does 2940 have? What about 3150?

STUDY GUIDE FOR THE WRECKONING. 1. Combinatorics. (1) How many (positive integer) divisors does 2940 have? What about 3150? STUDY GUIDE FOR THE WRECKONING. Combinatorics Go over combinatorics examples in the text. Review all the combinatorics problems from homework. Do at least a couple of extra problems given below. () How

More information

q xk y n k. , provided k < n. (This does not hold for k n.) Give a combinatorial proof of this recurrence by means of a bijective transformation.

q xk y n k. , provided k < n. (This does not hold for k n.) Give a combinatorial proof of this recurrence by means of a bijective transformation. Math 880 Alternative Challenge Problems Fall 2016 A1. Given, n 1, show that: m1 m 2 m = ( ) n+ 1 2 1, where the sum ranges over all positive integer solutions (m 1,..., m ) of m 1 + + m = n. Give both

More information

MA Discrete Mathematics

MA Discrete Mathematics MA2265 - Discrete Mathematics UNIT I 1. Check the validity of the following argument. If the band could not play rock music or the refreshments were not delivered on time, then the New year s party would

More information

Selected Topics in AGT Lecture 4 Introduction to Schur Rings

Selected Topics in AGT Lecture 4 Introduction to Schur Rings Selected Topics in AGT Lecture 4 Introduction to Schur Rings Mikhail Klin (BGU and UMB) September 14 18, 2015 M. Klin Selected topics in AGT September 2015 1 / 75 1 Schur rings as a particular case of

More information

UNIVERSITY OF PUNE, PUNE BOARD OF STUDIES IN MATHEMATICS SYLLABUS. F.Y.BSc (Computer Science) Paper-I Discrete Mathematics First Term

UNIVERSITY OF PUNE, PUNE BOARD OF STUDIES IN MATHEMATICS SYLLABUS. F.Y.BSc (Computer Science) Paper-I Discrete Mathematics First Term UNIVERSITY OF PUNE, PUNE 411007. BOARD OF STUDIES IN MATHEMATICS SYLLABUS F.Y.BSc (Computer Science) Paper-I Discrete Mathematics First Term 1) Finite Induction (4 lectures) 1.1) First principle of induction.

More information

MATHEMATICS. Course Syllabus. Section A: Linear Algebra. Subject Code: MA. Course Structure. Ordinary Differential Equations

MATHEMATICS. Course Syllabus. Section A: Linear Algebra. Subject Code: MA. Course Structure. Ordinary Differential Equations MATHEMATICS Subject Code: MA Course Structure Sections/Units Section A Section B Section C Linear Algebra Complex Analysis Real Analysis Topics Section D Section E Section F Section G Section H Section

More information

Probabilistic Proofs of Existence of Rare Events. Noga Alon

Probabilistic Proofs of Existence of Rare Events. Noga Alon Probabilistic Proofs of Existence of Rare Events Noga Alon Department of Mathematics Sackler Faculty of Exact Sciences Tel Aviv University Ramat-Aviv, Tel Aviv 69978 ISRAEL 1. The Local Lemma In a typical

More information

Discrete Mathematics & Mathematical Reasoning Course Overview

Discrete Mathematics & Mathematical Reasoning Course Overview Discrete Mathematics & Mathematical Reasoning Course Overview Colin Stirling Informatics Colin Stirling (Informatics) Discrete Mathematics Today 1 / 19 Teaching staff Lecturers: Colin Stirling, first half

More information

MATH 310 Course Objectives

MATH 310 Course Objectives MATH 310 Course Objectives Upon successful completion of MATH 310, the student should be able to: Apply the addition, subtraction, multiplication, and division principles to solve counting problems. Apply

More information

1. a. Give the converse and the contrapositive of the implication If it is raining then I get wet.

1. a. Give the converse and the contrapositive of the implication If it is raining then I get wet. VALLIAMMAI ENGINEERING COLLEGE DEPARTMENT OF MATHEMATICS SUB CODE/ TITLE: MA6566 DISCRETE MATHEMATICS QUESTION BANK Academic Year : 015-016 UNIT I LOGIC AND PROOFS PART-A 1. Write the negation of the following

More information

Simplification by Truth Table and without Truth Table

Simplification by Truth Table and without Truth Table Engineering Mathematics 2013 SUBJECT NAME SUBJECT CODE MATERIAL NAME MATERIAL CODE REGULATION UPDATED ON : Discrete Mathematics : MA2265 : University Questions : SKMA1006 : R2008 : August 2013 Name of

More information

Lecturer: Naoki Saito Scribe: Ashley Evans/Allen Xue. May 31, Graph Laplacians and Derivatives

Lecturer: Naoki Saito Scribe: Ashley Evans/Allen Xue. May 31, Graph Laplacians and Derivatives MAT 280: Laplacian Eigenfunctions: Theory, Applications, and Computations Lecture 19: Introduction to Spectral Graph Theory II. Graph Laplacians and Eigenvalues of Adjacency Matrices and Laplacians Lecturer:

More information

List of Theorems. Mat 416, Introduction to Graph Theory. Theorem 1 The numbers R(p, q) exist and for p, q 2,

List of Theorems. Mat 416, Introduction to Graph Theory. Theorem 1 The numbers R(p, q) exist and for p, q 2, List of Theorems Mat 416, Introduction to Graph Theory 1. Ramsey s Theorem for graphs 8.3.11. Theorem 1 The numbers R(p, q) exist and for p, q 2, R(p, q) R(p 1, q) + R(p, q 1). If both summands on the

More information

On some matrices related to a tree with attached graphs

On some matrices related to a tree with attached graphs On some matrices related to a tree with attached graphs R. B. Bapat Indian Statistical Institute New Delhi, 110016, India fax: 91-11-26856779, e-mail: rbb@isid.ac.in Abstract A tree with attached graphs

More information

Graph Theory(I): استاذ الماده: أ.م.د. أكرم برزان عطار

Graph Theory(I): استاذ الماده: أ.م.د. أكرم برزان عطار استاذ الماده: أ.م.د. أكرم برزان عطار Graph Theory(I): 1. An introduction to Graphs: The Definition of Graphs - Graphs as Models - Matrix Degree - Subgraphs- Paths and Cycles - the Matrix Representation

More information

Simplification by Truth Table and without Truth Table

Simplification by Truth Table and without Truth Table SUBJECT NAME SUBJECT CODE : MA 6566 MATERIAL NAME REGULATION : Discrete Mathematics : University Questions : R2013 UPDATED ON : April-May 2018 BOOK FOR REFERENCE To buy the book visit : Sri Hariganesh

More information

Supereulerian planar graphs

Supereulerian planar graphs Supereulerian planar graphs Hong-Jian Lai and Mingquan Zhan Department of Mathematics West Virginia University, Morgantown, WV 26506, USA Deying Li and Jingzhong Mao Department of Mathematics Central China

More information

Lecture 4. Random graphs II. 4.1 Automorphisms. 4.2 The number of simple graphs

Lecture 4. Random graphs II. 4.1 Automorphisms. 4.2 The number of simple graphs Lecture 4 Random graphs II 4.1 Automorphisms It turns out that a typical regular graph on a large number of vertices does not have any non-trivial symmetries. This is orginally due to Bollobás [Bol82]

More information

On non-hamiltonian circulant digraphs of outdegree three

On non-hamiltonian circulant digraphs of outdegree three On non-hamiltonian circulant digraphs of outdegree three Stephen C. Locke DEPARTMENT OF MATHEMATICAL SCIENCES, FLORIDA ATLANTIC UNIVERSITY, BOCA RATON, FL 33431 Dave Witte DEPARTMENT OF MATHEMATICS, OKLAHOMA

More information

ALTERNATING KNOT DIAGRAMS, EULER CIRCUITS AND THE INTERLACE POLYNOMIAL

ALTERNATING KNOT DIAGRAMS, EULER CIRCUITS AND THE INTERLACE POLYNOMIAL ALTERNATING KNOT DIAGRAMS, EULER CIRCUITS AND THE INTERLACE POLYNOMIAL P. N. BALISTER, B. BOLLOBÁS, O. M. RIORDAN AND A. D. SCOTT Abstract. We show that two classical theorems in graph theory and a simple

More information

This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and

This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution

More information

Simplification by Truth Table and without Truth Table

Simplification by Truth Table and without Truth Table SUBJECT NAME SUBJECT CODE : MA 6566 MATERIAL NAME REGULATION : Discrete Mathematics : University Questions : R2013 UPDATED ON : June 2017 (Scan the above Q.R code for the direct download of this material)

More information

M.Phil. (Mathematics) PROGRAMME CURRICULUM & SYLLABUS 2017 UGC MODEL

M.Phil. (Mathematics) PROGRAMME CURRICULUM & SYLLABUS 2017 UGC MODEL KALASALINGAM UNIVERSITY (KALASALINGAM ACADEMY OF RESEARCH AND EDUCATION) (Under Section 3 of the UGC Act 1956) Anand Nagar, Krishnankoil 626 126 Srivilliputtur(via), Virudhunagar(Dt.), Tamil Nadu, INDIA

More information

Supplement. Dr. Bob s Modern Algebra Glossary Based on Fraleigh s A First Course on Abstract Algebra, 7th Edition, Sections 0 through IV.

Supplement. Dr. Bob s Modern Algebra Glossary Based on Fraleigh s A First Course on Abstract Algebra, 7th Edition, Sections 0 through IV. Glossary 1 Supplement. Dr. Bob s Modern Algebra Glossary Based on Fraleigh s A First Course on Abstract Algebra, 7th Edition, Sections 0 through IV.23 Abelian Group. A group G, (or just G for short) is

More information

Polynomials in graph theory

Polynomials in graph theory Polynomials in graph theory Alexey Bogatov Department of Software Engineering Faculty of Mathematics and Mechanics Saint Petersburg State University JASS 2007 Saint Petersburg Course 1: Polynomials: Their

More information

CHEMICAL GRAPH THEORY

CHEMICAL GRAPH THEORY CHEMICAL GRAPH THEORY SECOND EDITION Nenad Trinajstic, Ph.D. Professor of Chemistry The Rugjer Boskovic Institute Zagreb The Republic of Croatia CRC Press Boca Raton Ann Arbor London Tokyo TABLE OF CONTENTS

More information

Course Description - Master in of Mathematics Comprehensive exam& Thesis Tracks

Course Description - Master in of Mathematics Comprehensive exam& Thesis Tracks Course Description - Master in of Mathematics Comprehensive exam& Thesis Tracks 1309701 Theory of ordinary differential equations Review of ODEs, existence and uniqueness of solutions for ODEs, existence

More information

Preliminaries. Graphs. E : set of edges (arcs) (Undirected) Graph : (i, j) = (j, i) (edges) V = {1, 2, 3, 4, 5}, E = {(1, 3), (3, 2), (2, 4)}

Preliminaries. Graphs. E : set of edges (arcs) (Undirected) Graph : (i, j) = (j, i) (edges) V = {1, 2, 3, 4, 5}, E = {(1, 3), (3, 2), (2, 4)} Preliminaries Graphs G = (V, E), V : set of vertices E : set of edges (arcs) (Undirected) Graph : (i, j) = (j, i) (edges) 1 2 3 5 4 V = {1, 2, 3, 4, 5}, E = {(1, 3), (3, 2), (2, 4)} 1 Directed Graph (Digraph)

More information

VALLIAMMAI ENGINEERING COLLEGE SRM Nagar, Kattankulathur

VALLIAMMAI ENGINEERING COLLEGE SRM Nagar, Kattankulathur VALLIAMMAI ENGINEERING COLLEGE SRM Nagar, Kattankulathur 603 203. DEPARTMENT OF COMPUTER SCIENCE ENGINEERING SUBJECT QUESTION BANK : MA6566 \ DISCRETE MATHEMATICS SEM / YEAR: V / III year CSE. UNIT I -

More information

Contents. Preface for the Instructor. Preface for the Student. xvii. Acknowledgments. 1 Vector Spaces 1 1.A R n and C n 2

Contents. Preface for the Instructor. Preface for the Student. xvii. Acknowledgments. 1 Vector Spaces 1 1.A R n and C n 2 Contents Preface for the Instructor xi Preface for the Student xv Acknowledgments xvii 1 Vector Spaces 1 1.A R n and C n 2 Complex Numbers 2 Lists 5 F n 6 Digression on Fields 10 Exercises 1.A 11 1.B Definition

More information

A Questionable Distance-Regular Graph

A Questionable Distance-Regular Graph A Questionable Distance-Regular Graph Rebecca Ross Abstract In this paper, we introduce distance-regular graphs and develop the intersection algebra for these graphs which is based upon its intersection

More information

Ramsey Unsaturated and Saturated Graphs

Ramsey Unsaturated and Saturated Graphs Ramsey Unsaturated and Saturated Graphs P Balister J Lehel RH Schelp March 20, 2005 Abstract A graph is Ramsey unsaturated if there exists a proper supergraph of the same order with the same Ramsey number,

More information

Combinatorics and Optimization 442/642, Fall 2012

Combinatorics and Optimization 442/642, Fall 2012 Compact course notes Combinatorics and Optimization 44/64, Fall 0 Graph Theory Contents Professor: J. Geelen transcribed by: J. Lazovskis University of Waterloo December 6, 0 0. Foundations..............................................

More information

Combinatorial semigroups and induced/deduced operators

Combinatorial semigroups and induced/deduced operators Combinatorial semigroups and induced/deduced operators G. Stacey Staples Department of Mathematics and Statistics Southern Illinois University Edwardsville Modified Hypercubes Particular groups & semigroups

More information

586 Index. vertex, 369 disjoint, 236 pairwise, 272, 395 disjoint sets, 236 disjunction, 33, 36 distributive laws

586 Index. vertex, 369 disjoint, 236 pairwise, 272, 395 disjoint sets, 236 disjunction, 33, 36 distributive laws Index absolute value, 135 141 additive identity, 254 additive inverse, 254 aleph, 465 algebra of sets, 245, 278 antisymmetric relation, 387 arcsine function, 349 arithmetic sequence, 208 arrow diagram,

More information

Lecture J. 10 Counting subgraphs Kirchhoff s Matrix-Tree Theorem.

Lecture J. 10 Counting subgraphs Kirchhoff s Matrix-Tree Theorem. Lecture J jacques@ucsd.edu Notation: Let [n] [n] := [n] 2. A weighted digraph is a function W : [n] 2 R. An arborescence is, loosely speaking, a digraph which consists in orienting eery edge of a rooted

More information

Test Code : CSB (Short Answer Type) Junior Research Fellowship (JRF) in Computer Science

Test Code : CSB (Short Answer Type) Junior Research Fellowship (JRF) in Computer Science Test Code : CSB (Short Answer Type) 2016 Junior Research Fellowship (JRF) in Computer Science The CSB test booklet will have two groups as follows: GROUP A A test for all candidates in the basics of computer

More information

Notes on Graph Theory

Notes on Graph Theory Notes on Graph Theory Maris Ozols June 8, 2010 Contents 0.1 Berge s Lemma............................................ 2 0.2 König s Theorem........................................... 3 0.3 Hall s Theorem............................................

More information

MATH 102 Calculus II (4-0-4)

MATH 102 Calculus II (4-0-4) MATH 101 Calculus I (4-0-4) (Old 101) Limits and continuity of functions of a single variable. Differentiability. Techniques of differentiation. Implicit differentiation. Local extrema, first and second

More information

arxiv: v2 [math.co] 6 Apr 2016

arxiv: v2 [math.co] 6 Apr 2016 On the chromatic number of Latin square graphs Nazli Besharati a, Luis Goddyn b, E.S. Mahmoodian c, M. Mortezaeefar c arxiv:1510.051v [math.co] 6 Apr 016 a Department of Mathematical Sciences, Payame Noor

More information

3 Credits. Prerequisite: MATH 402 or MATH 404 Cross-Listed. 3 Credits. Cross-Listed. 3 Credits. Cross-Listed. 3 Credits. Prerequisite: MATH 507

3 Credits. Prerequisite: MATH 402 or MATH 404 Cross-Listed. 3 Credits. Cross-Listed. 3 Credits. Cross-Listed. 3 Credits. Prerequisite: MATH 507 Mathematics (MATH) 1 MATHEMATICS (MATH) MATH 501: Real Analysis Legesgue measure theory. Measurable sets and measurable functions. Legesgue integration, convergence theorems. Lp spaces. Decomposition and

More information

STUDY PLAN MASTER IN (MATHEMATICS) (Thesis Track)

STUDY PLAN MASTER IN (MATHEMATICS) (Thesis Track) STUDY PLAN MASTER IN (MATHEMATICS) (Thesis Track) I. GENERAL RULES AND CONDITIONS: 1- This plan conforms to the regulations of the general frame of the Master programs. 2- Areas of specialty of admission

More information

COURSE SUMMARY FOR MATH 504, FALL QUARTER : MODERN ALGEBRA

COURSE SUMMARY FOR MATH 504, FALL QUARTER : MODERN ALGEBRA COURSE SUMMARY FOR MATH 504, FALL QUARTER 2017-8: MODERN ALGEBRA JAROD ALPER Week 1, Sept 27, 29: Introduction to Groups Lecture 1: Introduction to groups. Defined a group and discussed basic properties

More information

COUNTING ROOTED FORESTS IN A NETWORK

COUNTING ROOTED FORESTS IN A NETWORK COUNTING ROOTED FORESTS IN A NETWORK OLIVER KNILL Abstract. If F, G are two n m matrices, then det(1+xf T G) = P x P det(f P )det(g P ) where the sum is over all minors [19]. An application is a new proof

More information

Cycle Double Covers and Semi-Kotzig Frame

Cycle Double Covers and Semi-Kotzig Frame Cycle Double Covers and Semi-Kotzig Frame Dong Ye and Cun-Quan Zhang arxiv:1105.5190v1 [math.co] 26 May 2011 Department of Mathematics, West Virginia University, Morgantown, WV 26506-6310 Emails: dye@math.wvu.edu;

More information

AN INTRODUCTION TO CHROMATIC POLYNOMIALS

AN INTRODUCTION TO CHROMATIC POLYNOMIALS BACKGROUND POLYNOMIALS COMPLEX ZEROS AN INTRODUCTION TO CHROMATIC POLYNOMIALS Gordon Royle School of Mathematics & Statistics University of Western Australia Junior Mathematics Seminar, UWA September 2011

More information

On the adjacency matrix of a block graph

On the adjacency matrix of a block graph On the adjacency matrix of a block graph R. B. Bapat Stat-Math Unit Indian Statistical Institute, Delhi 7-SJSS Marg, New Delhi 110 016, India. email: rbb@isid.ac.in Souvik Roy Economics and Planning Unit

More information

Tutte Polynomials with Applications

Tutte Polynomials with Applications Global Journal of Pure and Applied Mathematics. ISSN 0973-1768 Volume 12, Number 6 (26), pp. 4781 4797 Research India Publications http://www.ripublication.com/gjpam.htm Tutte Polynomials with Applications

More information

On the number of cycles in a graph with restricted cycle lengths

On the number of cycles in a graph with restricted cycle lengths On the number of cycles in a graph with restricted cycle lengths Dániel Gerbner, Balázs Keszegh, Cory Palmer, Balázs Patkós arxiv:1610.03476v1 [math.co] 11 Oct 2016 October 12, 2016 Abstract Let L be a

More information

Ira M. Gessel Department of Mathematics, Brandeis University, P.O. Box 9110, Waltham, MA Revised September 30, 1988

Ira M. Gessel Department of Mathematics, Brandeis University, P.O. Box 9110, Waltham, MA Revised September 30, 1988 GENERALIZED ROOK POLYNOMIALS AND ORTHOGONAL POLYNOMIALS Ira M. Gessel Department of Mathematics, Brandeis University, P.O. Box 9110, Waltham, MA 02254-9110 Revised September 30, 1988 Abstract. We consider

More information

Applied Mathematics-II. Applied Mathematics-I. Engineering Physics 2/ed. Engineering Chemistry. Ane Books Pvt. Ltd.

Applied Mathematics-II. Applied Mathematics-I. Engineering Physics 2/ed. Engineering Chemistry. Ane Books Pvt. Ltd. APPLIED SCIENCE / ENGINEERING Applied -I Applied -II Abhimanyu Singh Abhimanyu Singh Contents: Preface, Syllabus 1. Complex Numbers 2. Infinite Series 3. Successive Differentiation 4. Expansion of Functions

More information

Combinatorial and physical content of Kirchhoff polynomials

Combinatorial and physical content of Kirchhoff polynomials Combinatorial and physical content of Kirchhoff polynomials Karen Yeats May 19, 2009 Spanning trees Let G be a connected graph, potentially with multiple edges and loops in the sense of a graph theorist.

More information

RESEARCH ARTICLE. An extension of the polytope of doubly stochastic matrices

RESEARCH ARTICLE. An extension of the polytope of doubly stochastic matrices Linear and Multilinear Algebra Vol. 00, No. 00, Month 200x, 1 15 RESEARCH ARTICLE An extension of the polytope of doubly stochastic matrices Richard A. Brualdi a and Geir Dahl b a Department of Mathematics,

More information

On certain Regular Maps with Automorphism group PSL(2, p) Martin Downs

On certain Regular Maps with Automorphism group PSL(2, p) Martin Downs BULLETIN OF THE GREEK MATHEMATICAL SOCIETY Volume 53, 2007 (59 67) On certain Regular Maps with Automorphism group PSL(2, p) Martin Downs Received 18/04/2007 Accepted 03/10/2007 Abstract Let p be any prime

More information

arxiv: v2 [math.co] 6 Oct 2016

arxiv: v2 [math.co] 6 Oct 2016 ON THE CRITICAL GROUP OF THE MISSING MOORE GRAPH. arxiv:1509.00327v2 [math.co] 6 Oct 2016 JOSHUA E. DUCEY Abstract. We consider the critical group of a hypothetical Moore graph of diameter 2 and valency

More information