LARGE GAPS BETWEEN CONSECUTIVE PRIME NUMBERS CONTAINING SQUARE-FREE NUMBERS AND PERFECT POWERS OF PRIME NUMBERS
|
|
- Neil Evans
- 5 years ago
- Views:
Transcription
1 LARGE GAPS BETWEEN CONSECUTIVE PRIME NUMBERS CONTAINING SQUARE-FREE NUMBERS AND PERFECT POWERS OF PRIME NUMBERS HELMUT MAIER AND MICHAEL TH. RASSIAS Abstract. We rove a modification as well as an imrovement of a result of K. Ford, D. R. Heath-Brown and S. Konyagin [] concerning rime avoidance of square-free numbers and erfect owers of rime numbers. 010 Mathematics Subject Classification: 11P3. 1. Introduction In their aer [], K. Ford, D. R. Heath-Brown and S. Konyagin rove the eistence of infinitely many rime-avoiding erfect k-th owers for any ositive integer k. They give the following definition of rime avoidance: an integer m is called rime avoiding with constant c, if m + u is comosite for all integers u satisfying 1 u c log m log m log 4 m log 3 m). In this aer, we rove the following two theorems: Theorem 1.1. There is a constant c > 0 such that there are infinitely many rimeavoiding square-free numbers with constant c. Theorem 1.. For any ositive integer k, there are a constant c = ck) > 0 and infinitely many erfect k-th owers of rime numbers which are rime-avoiding with constant c. We largely follow the roof of [].. Proof of the Theorem 1.1 Lemma.1. For large and z log 3 /10 log ), we have {n : P + n) z} log ) 5, where P + n) denotes the largest rime factor of a ositive integer n. Proof. This is Lemma.1 of [] see also [8]). Date: October 3, We denote by log = log log, log 3 = log log log, and so on. 1
2 Lemma.. Let R denote any set of rimes and let a Z \ {0}. Then, for large, we have { : amodr) r R)} 1 1 ). log R Note. Here and in the sequel will always denote a rime number. Proof. This is Lemma. of [] see also [4]). Lemma.3. Let N =. Then there is m 0 Z, such that for all m m 0 mod N) we have: m + u is comosite for u [ y, y]. Proof. The argument for the roof aears in [8] Proof of Theorem 1.1. We now consider the arithmetic rogression *) m = kn + m 0, k N. By elementary methods see Heath-Brown [6] for references) the arithmetic rogression *) contains a square-free number 1) m N 3/+ε, where ε > 0 is arbitrarily small. By the rime number theorem, we have ) N e +o). We know that m + u is a comosite number for u [ y, y] see [8]). estimates 1) and ), we obtain y c log m log m log 4 m log 3 m) for a constant c > 0, which roves Theorem Primes in arithmetic rogressions The following definition is borrowed from [7]. By the Definition 3.1. Let us call an integer q > 1 a good modulus, if Ls, χ) 0 for all characters χ mod q and all s = σ + it with σ > 1 C 1 log [q t + 1)]. This definition deends on the size of C 1 > 0. Lemma 3.. There is a constant C 1 > 0 such that, in terms of C 1, there eist arbitrarily large values of for which the modulus is good. P ) = < Proof. This is Lemma 1 of [7]
3 Lemma 3.3. Let q be a good modulus. Then π; q, a) φq) log, uniformly for a, q) = 1 and q D. Here the constant D deends only on the value of C 1 in Lemma 3.. Proof. This result, which is due to Gallagher [3], is Lemma from [7]. 4. Congruence conditions for the rime-avoiding number Let be a large ositive number and y, z be defined as in Definition??. Set P ) =. We will give a system of congruences that has a single solution m 0, with 0 m 0 P ) 1 having the roerty that the interval [m k 0 y, m k 0 + y] contains only few rime numbers. Definition 4.1. We set Lemma 4.. We have P 1 = { : log or z < /40k}, P = { : log < z}, U 1 = {u [ y, y], u Z, u for at least one P 1 }, U = {u [ y, y] : u U 1 }, U 3 = {u [ y, y] : u is rime}, U 4 = {u [ y, y] : P + u ) z}, U 5 = {u U 3 : u + k 1 for P } U = U 3 U 4. Proof. Assume that u U \ U 4. Then by Definition 4.1 there is a rime number 0 P with 0 u. Since u U 1, we have 0 > /4. Thus, there is no rime 1 u 0, since otherwise u 0 1 > 4 log > y, a contradiction. Thus u = 0 and therefore u U 3. Lemma 4.3. We have Proof. This follows from Lemma.1. U 4 log ) 4. A trivial consequence of Lemma.. is the following Lemma: Lemma 4.4. We can choose the constants c 1, c such that U 5 30k log. 3
4 For the net definitions and results we follow the aer []. For the convenience of the reader we reeat the elanations of []. Let k be odd. For each u U associate with u a different rime u 40k, ] such that u 1, k) = 1 e.g. one can take u mod k), if k 3). Then every residue modulo u is a k-th ower residue. Let k be even. There do not eist rimes for which every residue modulo is a k-th ower residue. We maimize the density of k-th ower residues by choosing rimes such that 1, k) =, e.g. taking 3mod 4k). For such rimes every quadratic residue is a k-th ower residue. Definition 4.5. Let { { : 40k P 3 = <, mod k)}, if k is odd { : 40k <, 3 mod 4k)}, if k is even, We now define the ecetional set U 6 as follows: For k odd we set U 6 =. For k even and δ > 0, we set { ) u U 6 = u [ y, y] : = 1 for at most Lemma 4.6. if δ is sufficiently small. U 6 ε 1/+ε, Proof. Each u may be written uniquely in the form u = s a u 1u, } δ log rimes P 3. where s = ±1, a {0, 1} and u is odd and squarefree. From 3mod4k) it follows by the law of quadratic recirocity, that ) ) 1 = 1, = 1. Therefore *) We consider the sum ) u = s 1) u 1 S = u U P 3 ) ) a. u Given u, there are at most y/u y choices for u 1. Each of the eight ossibilities ) for the choices s { 1, 1}, a {0, 1}, u 1 or 3 mod 4) leads to a coefficient of u on the right hand side of *) that is indeendent of. Thus, we have S y ) 1/ ε 5/+ε u u y P 3 4 ) u
5 by Lemma.3 of []. If u U 6, then clearly P 3 ) u η log with η = ηk) > 0. It follows that S U 6 / log ), and consequently that Definition 4.7. We set Lemma 4.8. We have U 6 ε 1/+ε. U 7 = U 4 U 5. U 7 0k log. Proof. This follows from Definition 4.7 and Lemmas 4.3, 4.4 We now introduce the congruence conditions, which determine the integer m 0 uniquely mod P )). Definition 4.9. C 1 ) m 0 1 mod ), for P 1, C ) m 0 mod ), for P. For the introduction of the congruence conditions C 3 ) we make use of Lemma 4.8. Since P 3 U 7, there is an injective maing Φ : U 7 /U 6 P 3, u P u. We set P 3 = ΦU 7 /U 6 ). Every residue modulo u is a k-th ower residue and we take m u such that m k u u 1) mod u ) The set C 3 ) of congruences is then defined by C 3 ) m 0 m u mod u ), u P 3. Let P 4 = { [0, ) : P 1 P P 3 }. The set of congruences is then defined by C 4 ) m 0 1 mod ), P 4. Lemma The congruence systems C 1 ) C 4 ) and the condition 1 m 0 P ) 1 determine m 0 uniquely. We have m 0, P )) = 1. Proof. The uniqueness follows from the Chinese Remainder Theorem. The corimality follows, since by the definition of C 1 ) C 4 ) m 0 is corime to all, with 0 <. 5
6 Lemma Let m m 0 mod P )). Then m, P )) = 1 and the number is comosite for all u [ y, y] \ U 6. m k + u 1) Proof. For u U 1, there is P 1 with u. Therefore, since by Definition 4.9, the system C 1 ) imlies that m 0 1 mod ), we have i.e. m k + u 1) m k 0 + u 1) 1 + u 1 u 0 mod ), m k + u 1). For u U 3, u U 5, there is P with u + k 1. Since by C ) m 0 mod ), we have i.e. m k 0 + u 1) k k 0 mod ), m k + u 1). There is only one remaining case, namely u U 7 /U 6, and one uses C 3 ). 5. Conclusion of the roof of Theorem 1. Let now be such that P ) is a good modulus in the sense of Definition 3.1. By Lemma 3., there are arbitrarily large such elements. Let D be a sufficiently large ositive integer. Let M be the matri with P ) D 1 rows and U = y + 1 columns, with the r, u element being a r,u = m 0 + rp )) k + u 1, where 1 r P ) D 1 and y u y. Let N 0, k) be the number of erfect k-th owers of rimes in the column C 1 = {a r,1 : 1 r P ) D 1 }. Since P ) is a good modulus, we have by Lemma 3. that 5.1) N 0, k) C 0 k) P ) D 1 logp ) D 1 ). Let R 1 be the set of rows R 1, in which these owers of rimes aear. We now give an uer bound for the number N 1 of rows R r R 1, which contain rimes. We observe that for all other rows R r R 1, the element a r,1 = m 0 + rp )) k is a rime avoiding k-th ower of the rime m 0 + rp ). Lemma 5.1. For sufficiently small c, we have Proof. For all v with v 1 U 6, let N 1 1 N 0, k). T v) = {r : 1 r P ) D 1, m 0 + rp ) and m 0 + rp )) k + v 1 are rimes}. We have 5.) N 1 v U 6 T v). 6
7 A standard alication of sieves gives 5.3) T v) P ) D 1 < P ) < P ) By Lemma 3.1 of [], we have 1 ρ) ) 1 1 ) 1 ρ) ). < P ) k,ε v ε log log P ). Lemma 5.1 now follows from 5.), 5.3) and the bound for U 6. This comletes the roof of Theorem 1.. Acknowledgements. We would like to thank the referee for his very valuable comments which imroved the resentation of the aer. References [1] A. C. Cojocaru, M. Ram Murty, An Introduction to Sieve Methods and their Alications, Cambridge Univ. Press, 006. [] K. Ford, D. R. Heath-Brown and S. Konyagin, Large gas between consecutive rime numbers containing erfect owers, In: Analytic Number Theory. In honor of Helmut Maier s 60th birthday, Sringer, New York, 015 to aear). [3] P. X. Gallagher, A large sieve density estimate near σ = 1, Invent. Math., ), [4] H. Halberstam and H. -E. Richert, Sieve Methods, Academic Press, London, [5] G. H. Hardy and E. M. Wright, An Introduction to the Theory of Numbers, 5th edition, Oford Univ. Press, [6] D. R. Heath-Brown, The least square-free number in an arithmetic rogression, J. Reine Angew. Math., 33198), [7] H. Maier, Chains of large gas between consecutive rimes, Adv. in Math., ), [8] R. A. Rankin, The difference between consecutive rime numbers, J. London Math. Soc., ), Deartment of Mathematics, University of Ulm, Helmholtzstrasse 18, 8901 Ulm, Germany. address: helmut.maier@uni-ulm.de Deartment of Mathematics, ETH-Zürich, Rämistrasse 101, 809 Zürich, Switzerland & Deartment of Mathematics, Princeton University, Fine Hall, Washington Road, Princeton, NJ , USA address: michail.rassias@math.ethz.ch, michailrassias@math.rinceton.edu 7
Representing Integers as the Sum of Two Squares in the Ring Z n
1 2 3 47 6 23 11 Journal of Integer Sequences, Vol. 17 (2014), Article 14.7.4 Reresenting Integers as the Sum of Two Squares in the Ring Z n Joshua Harrington, Lenny Jones, and Alicia Lamarche Deartment
More informationAliquot sums of Fibonacci numbers
Aliquot sums of Fibonacci numbers Florian Luca Instituto de Matemáticas Universidad Nacional Autónoma de Méico C.P. 58089, Morelia, Michoacán, Méico fluca@matmor.unam.m Pantelimon Stănică Naval Postgraduate
More informationMATH 3240Q Introduction to Number Theory Homework 7
As long as algebra and geometry have been searated, their rogress have been slow and their uses limited; but when these two sciences have been united, they have lent each mutual forces, and have marched
More informationON THE DISTRIBUTION OF THE PARTIAL SUM OF EULER S TOTIENT FUNCTION IN RESIDUE CLASSES
C O L L O Q U I U M M A T H E M A T I C U M VOL. * 0* NO. * ON THE DISTRIBUTION OF THE PARTIAL SUM OF EULER S TOTIENT FUNCTION IN RESIDUE CLASSES BY YOUNESS LAMZOURI, M. TIP PHAOVIBUL and ALEXANDRU ZAHARESCU
More informationBOUNDS FOR THE SIZE OF SETS WITH THE PROPERTY D(n) Andrej Dujella University of Zagreb, Croatia
GLASNIK MATMATIČKI Vol. 39(59(2004, 199 205 BOUNDS FOR TH SIZ OF STS WITH TH PROPRTY D(n Andrej Dujella University of Zagreb, Croatia Abstract. Let n be a nonzero integer and a 1 < a 2 < < a m ositive
More informationMath 4400/6400 Homework #8 solutions. 1. Let P be an odd integer (not necessarily prime). Show that modulo 2,
MATH 4400 roblems. Math 4400/6400 Homework # solutions 1. Let P be an odd integer not necessarily rime. Show that modulo, { P 1 0 if P 1, 7 mod, 1 if P 3, mod. Proof. Suose that P 1 mod. Then we can write
More informationON THE RESIDUE CLASSES OF (n) MODULO t
#A79 INTEGERS 3 (03) ON THE RESIDUE CLASSES OF (n) MODULO t Ping Ngai Chung Deartment of Mathematics, Massachusetts Institute of Technology, Cambridge, Massachusetts briancn@mit.edu Shiyu Li Det of Mathematics,
More informationBEST POSSIBLE DENSITIES OF DICKSON m-tuples, AS A CONSEQUENCE OF ZHANG-MAYNARD-TAO
BEST POSSIBLE DENSITIES OF DICKSON m-tuples, AS A CONSEQUENCE OF ZHANG-MAYNARD-TAO ANDREW GRANVILLE, DANIEL M. KANE, DIMITRIS KOUKOULOPOULOS, AND ROBERT J. LEMKE OLIVER Abstract. We determine for what
More informationJacobi symbols and application to primality
Jacobi symbols and alication to rimality Setember 19, 018 1 The grou Z/Z We review the structure of the abelian grou Z/Z. Using Chinese remainder theorem, we can restrict to the case when = k is a rime
More informationOn the Diophantine Equation x 2 = 4q n 4q m + 9
JKAU: Sci., Vol. 1 No. 1, : 135-141 (009 A.D. / 1430 A.H.) On the Diohantine Equation x = 4q n 4q m + 9 Riyadh University for Girls, Riyadh, Saudi Arabia abumuriefah@yahoo.com Abstract. In this aer, we
More informationCERIAS Tech Report The period of the Bell numbers modulo a prime by Peter Montgomery, Sangil Nahm, Samuel Wagstaff Jr Center for Education
CERIAS Tech Reort 2010-01 The eriod of the Bell numbers modulo a rime by Peter Montgomery, Sangil Nahm, Samuel Wagstaff Jr Center for Education and Research Information Assurance and Security Purdue University,
More informationOn Erdős and Sárközy s sequences with Property P
Monatsh Math 017 18:565 575 DOI 10.1007/s00605-016-0995-9 On Erdős and Sárközy s sequences with Proerty P Christian Elsholtz 1 Stefan Planitzer 1 Received: 7 November 015 / Acceted: 7 October 016 / Published
More informationMersenne and Fermat Numbers
NUMBER THEORY CHARLES LEYTEM Mersenne and Fermat Numbers CONTENTS 1. The Little Fermat theorem 2 2. Mersenne numbers 2 3. Fermat numbers 4 4. An IMO roblem 5 1 2 CHARLES LEYTEM 1. THE LITTLE FERMAT THEOREM
More informationVerifying Two Conjectures on Generalized Elite Primes
1 2 3 47 6 23 11 Journal of Integer Sequences, Vol. 12 (2009), Article 09.4.7 Verifying Two Conjectures on Generalized Elite Primes Xiaoqin Li 1 Mathematics Deartment Anhui Normal University Wuhu 241000,
More informationAn Estimate For Heilbronn s Exponential Sum
An Estimate For Heilbronn s Exonential Sum D.R. Heath-Brown Magdalen College, Oxford For Heini Halberstam, on his retirement Let be a rime, and set e(x) = ex(2πix). Heilbronn s exonential sum is defined
More informationSmall Zeros of Quadratic Forms Mod P m
International Mathematical Forum, Vol. 8, 2013, no. 8, 357-367 Small Zeros of Quadratic Forms Mod P m Ali H. Hakami Deartment of Mathematics, Faculty of Science, Jazan University P.O. Box 277, Jazan, Postal
More informationMarch 4, :21 WSPC/INSTRUCTION FILE FLSpaper2011
International Journal of Number Theory c World Scientific Publishing Comany SOLVING n(n + d) (n + (k 1)d ) = by 2 WITH P (b) Ck M. Filaseta Deartment of Mathematics, University of South Carolina, Columbia,
More informationOn the Square-free Numbers in Shifted Primes Zerui Tan The High School Attached to The Hunan Normal University November 29, 204 Abstract For a fixed o
On the Square-free Numbers in Shifted Primes Zerui Tan The High School Attached to The Hunan Normal University, China Advisor : Yongxing Cheng November 29, 204 Page - 504 On the Square-free Numbers in
More informationON THE LEAST SIGNIFICANT p ADIC DIGITS OF CERTAIN LUCAS NUMBERS
#A13 INTEGERS 14 (014) ON THE LEAST SIGNIFICANT ADIC DIGITS OF CERTAIN LUCAS NUMBERS Tamás Lengyel Deartment of Mathematics, Occidental College, Los Angeles, California lengyel@oxy.edu Received: 6/13/13,
More informationThe inverse Goldbach problem
1 The inverse Goldbach roblem by Christian Elsholtz Submission Setember 7, 2000 (this version includes galley corrections). Aeared in Mathematika 2001. Abstract We imrove the uer and lower bounds of the
More informationThe Hasse Minkowski Theorem Lee Dicker University of Minnesota, REU Summer 2001
The Hasse Minkowski Theorem Lee Dicker University of Minnesota, REU Summer 2001 The Hasse-Minkowski Theorem rovides a characterization of the rational quadratic forms. What follows is a roof of the Hasse-Minkowski
More informationOn the Multiplicative Order of a n Modulo n
1 2 3 47 6 23 11 Journal of Integer Sequences, Vol. 13 2010), Article 10.2.1 On the Multilicative Order of a n Modulo n Jonathan Chaelo Université Lille Nord de France F-59000 Lille France jonathan.chaelon@lma.univ-littoral.fr
More information#A47 INTEGERS 15 (2015) QUADRATIC DIOPHANTINE EQUATIONS WITH INFINITELY MANY SOLUTIONS IN POSITIVE INTEGERS
#A47 INTEGERS 15 (015) QUADRATIC DIOPHANTINE EQUATIONS WITH INFINITELY MANY SOLUTIONS IN POSITIVE INTEGERS Mihai Ciu Simion Stoilow Institute of Mathematics of the Romanian Academy, Research Unit No. 5,
More informationx 2 a mod m. has a solution. Theorem 13.2 (Euler s Criterion). Let p be an odd prime. The congruence x 2 1 mod p,
13. Quadratic Residues We now turn to the question of when a quadratic equation has a solution modulo m. The general quadratic equation looks like ax + bx + c 0 mod m. Assuming that m is odd or that b
More informationA CLASS OF ALGEBRAIC-EXPONENTIAL CONGRUENCES MODULO p. 1. Introduction
Acta Math. Univ. Comenianae Vol. LXXI, (2002),. 3 7 3 A CLASS OF ALGEBRAIC-EXPONENTIAL CONGRUENCES MODULO C. COBELI, M. VÂJÂITU and A. ZAHARESCU Abstract. Let be a rime number, J a set of consecutive integers,
More informationInfinitely Many Insolvable Diophantine Equations
ACKNOWLEDGMENT. After this aer was submitted, the author received messages from G. D. Anderson and M. Vuorinen that concerned [10] and informed him about references [1] [7]. He is leased to thank them
More informationJEAN-MARIE DE KONINCK AND IMRE KÁTAI
BULLETIN OF THE HELLENIC MATHEMATICAL SOCIETY Volume 6, 207 ( 0) ON THE DISTRIBUTION OF THE DIFFERENCE OF SOME ARITHMETIC FUNCTIONS JEAN-MARIE DE KONINCK AND IMRE KÁTAI Abstract. Let ϕ stand for the Euler
More informationARITHMETIC PROGRESSIONS OF POLYGONAL NUMBERS WITH COMMON DIFFERENCE A POLYGONAL NUMBER
#A43 INTEGERS 17 (2017) ARITHMETIC PROGRESSIONS OF POLYGONAL NUMBERS WITH COMMON DIFFERENCE A POLYGONAL NUMBER Lenny Jones Deartment of Mathematics, Shiensburg University, Shiensburg, Pennsylvania lkjone@shi.edu
More informationCongruences and exponential sums with the sum of aliquot divisors function
Congruences and exonential sums with the sum of aliquot divisors function Sanka Balasuriya Deartment of Comuting Macquarie University Sydney, SW 209, Australia sanka@ics.mq.edu.au William D. Banks Deartment
More informationPrime-like sequences leading to the construction of normal numbers
Prime-like sequences leading to the construction of normal numbers Jean-Marie De Koninck 1 and Imre Kátai 2 Abstract Given an integer q 2, a q-normal number is an irrational number η such that any reassigned
More informationJonathan Sondow 209 West 97th Street, New York, New York
#A34 INTEGERS 11 (2011) REDUCING THE ERDŐS-MOSER EQUATION 1 n + 2 n + + k n = (k + 1) n MODULO k AND k 2 Jonathan Sondow 209 West 97th Street, New York, New York jsondow@alumni.rinceton.edu Kieren MacMillan
More informationOn the Distribution of Perfect Powers
2 3 47 6 23 Journal of Integer Sequences, Vol. 4 (20), rticle.8.5 On the Distribution of Perfect Powers Rafael Jakimczuk División Matemática Universidad Nacional de Luján Buenos ires rgentina jakimczu@mail.unlu.edu.ar
More informationAlmost All Palindromes Are Composite
Almost All Palindromes Are Comosite William D Banks Det of Mathematics, University of Missouri Columbia, MO 65211, USA bbanks@mathmissouriedu Derrick N Hart Det of Mathematics, University of Missouri Columbia,
More informationDIRICHLET S THEOREM ABOUT PRIMES IN ARITHMETIC PROGRESSIONS. Contents. 1. Dirichlet s theorem on arithmetic progressions
DIRICHLET S THEOREM ABOUT PRIMES IN ARITHMETIC PROGRESSIONS ANG LI Abstract. Dirichlet s theorem states that if q and l are two relatively rime ositive integers, there are infinitely many rimes of the
More informationON THE SET a x + b g x (mod p) 1 Introduction
PORTUGALIAE MATHEMATICA Vol 59 Fasc 00 Nova Série ON THE SET a x + b g x (mod ) Cristian Cobeli, Marian Vâjâitu and Alexandru Zaharescu Abstract: Given nonzero integers a, b we rove an asymtotic result
More informationDiophantine Equations and Congruences
International Journal of Algebra, Vol. 1, 2007, no. 6, 293-302 Diohantine Equations and Congruences R. A. Mollin Deartment of Mathematics and Statistics University of Calgary, Calgary, Alberta, Canada,
More information#A6 INTEGERS 15A (2015) ON REDUCIBLE AND PRIMITIVE SUBSETS OF F P, I. Katalin Gyarmati 1.
#A6 INTEGERS 15A (015) ON REDUCIBLE AND PRIMITIVE SUBSETS OF F P, I Katalin Gyarmati 1 Deartment of Algebra and Number Theory, Eötvös Loránd University and MTA-ELTE Geometric and Algebraic Combinatorics
More informationInfinitely Many Quadratic Diophantine Equations Solvable Everywhere Locally, But Not Solvable Globally
Infinitely Many Quadratic Diohantine Equations Solvable Everywhere Locally, But Not Solvable Globally R.A. Mollin Abstract We resent an infinite class of integers 2c, which turn out to be Richaud-Degert
More informationPrimes - Problem Sheet 5 - Solutions
Primes - Problem Sheet 5 - Solutions Class number, and reduction of quadratic forms Positive-definite Q1) Aly the roof of Theorem 5.5 to find reduced forms equivalent to the following, also give matrices
More informationA CONCRETE EXAMPLE OF PRIME BEHAVIOR IN QUADRATIC FIELDS. 1. Abstract
A CONCRETE EXAMPLE OF PRIME BEHAVIOR IN QUADRATIC FIELDS CASEY BRUCK 1. Abstract The goal of this aer is to rovide a concise way for undergraduate mathematics students to learn about how rime numbers behave
More informationOn Character Sums of Binary Quadratic Forms 1 2. Mei-Chu Chang 3. Abstract. We establish character sum bounds of the form.
On Character Sums of Binary Quadratic Forms 2 Mei-Chu Chang 3 Abstract. We establish character sum bounds of the form χ(x 2 + ky 2 ) < τ H 2, a x a+h b y b+h where χ is a nontrivial character (mod ), 4
More informationComposite Numbers with Large Prime Factors
International Mathematical Forum, Vol. 4, 209, no., 27-39 HIKARI Ltd, www.m-hikari.com htts://doi.org/0.2988/imf.209.9 Comosite Numbers with Large Prime Factors Rafael Jakimczuk División Matemática, Universidad
More informationarxiv:math/ v2 [math.nt] 21 Oct 2004
SUMS OF THE FORM 1/x k 1 + +1/x k n MODULO A PRIME arxiv:math/0403360v2 [math.nt] 21 Oct 2004 Ernie Croot 1 Deartment of Mathematics, Georgia Institute of Technology, Atlanta, GA 30332 ecroot@math.gatech.edu
More informationBy Evan Chen OTIS, Internal Use
Solutions Notes for DNY-NTCONSTRUCT Evan Chen January 17, 018 1 Solution Notes to TSTST 015/5 Let ϕ(n) denote the number of ositive integers less than n that are relatively rime to n. Prove that there
More informationMATH342 Practice Exam
MATH342 Practice Exam This exam is intended to be in a similar style to the examination in May/June 2012. It is not imlied that all questions on the real examination will follow the content of the ractice
More informationApplicable Analysis and Discrete Mathematics available online at HENSEL CODES OF SQUARE ROOTS OF P-ADIC NUMBERS
Alicable Analysis and Discrete Mathematics available online at htt://efmath.etf.rs Al. Anal. Discrete Math. 4 (010), 3 44. doi:10.98/aadm1000009m HENSEL CODES OF SQUARE ROOTS OF P-ADIC NUMBERS Zerzaihi
More informationPARTITIONS AND (2k + 1) CORES. 1. Introduction
PARITY RESULTS FOR BROKEN k DIAMOND PARTITIONS AND 2k + CORES SILVIU RADU AND JAMES A. SELLERS Abstract. In this aer we rove several new arity results for broken k-diamond artitions introduced in 2007
More informationEquidivisible consecutive integers
& Equidivisible consecutive integers Ivo Düntsch Department of Computer Science Brock University St Catherines, Ontario, L2S 3A1, Canada duentsch@cosc.brocku.ca Roger B. Eggleton Department of Mathematics
More informationIndivisibility of Class Numbers and Iwasawa l-invariants of Real Quadratic Fields
Comositio Mathematica 16: 49^56, 001. 49 # 001 Kluwer Academic Publishers. Printed in the Netherlands. Indivisibility of Class Numbers and Iwasawa l-invariants of Real Quadratic Fields ONGHO BYEON School
More informationHOMEWORK # 4 MARIA SIMBIRSKY SANDY ROGERS MATTHEW WELSH
HOMEWORK # 4 MARIA SIMBIRSKY SANDY ROGERS MATTHEW WELSH 1. Section 2.1, Problems 5, 8, 28, and 48 Problem. 2.1.5 Write a single congruence that is equivalent to the air of congruences x 1 mod 4 and x 2
More informationCongruences modulo 3 for two interesting partitions arising from two theta function identities
Note di Matematica ISSN 113-53, e-issn 1590-093 Note Mat. 3 01 no., 1 7. doi:10.185/i1590093v3n1 Congruences modulo 3 for two interesting artitions arising from two theta function identities Kuwali Das
More informationMATH 361: NUMBER THEORY EIGHTH LECTURE
MATH 361: NUMBER THEORY EIGHTH LECTURE 1. Quadratic Recirocity: Introduction Quadratic recirocity is the first result of modern number theory. Lagrange conjectured it in the late 1700 s, but it was first
More informationResearch Article A New Sum Analogous to Gauss Sums and Its Fourth Power Mean
e Scientific World Journal, Article ID 139725, ages htt://dx.doi.org/10.1155/201/139725 Research Article A New Sum Analogous to Gauss Sums and Its Fourth Power Mean Shaofeng Ru 1 and Weneng Zhang 2 1 School
More informationA CRITERION FOR POLYNOMIALS TO BE CONGRUENT TO THE PRODUCT OF LINEAR POLYNOMIALS (mod p) ZHI-HONG SUN
A CRITERION FOR POLYNOMIALS TO BE CONGRUENT TO THE PRODUCT OF LINEAR POLYNOMIALS (mod ) ZHI-HONG SUN Deartment of Mathematics, Huaiyin Teachers College, Huaian 223001, Jiangsu, P. R. China e-mail: hyzhsun@ublic.hy.js.cn
More informationarxiv: v2 [math.nt] 9 Oct 2018
ON AN EXTENSION OF ZOLOTAREV S LEMMA AND SOME PERMUTATIONS LI-YUAN WANG AND HAI-LIANG WU arxiv:1810.03006v [math.nt] 9 Oct 018 Abstract. Let be an odd rime, for each integer a with a, the famous Zolotarev
More informationCongruences and Exponential Sums with the Euler Function
Fields Institute Communications Volume 00, 0000 Congruences and Exonential Sums with the Euler Function William D. Banks Deartment of Mathematics, University of Missouri Columbia, MO 652 USA bbanks@math.missouri.edu
More informationErnie Croot 1. Department of Mathematics, Georgia Institute of Technology, Atlanta, GA Abstract
SUMS OF THE FORM 1/x k 1 + + 1/x k n MODULO A PRIME Ernie Croot 1 Deartment of Mathematics, Georgia Institute of Technology, Atlanta, GA 30332 ecroot@math.gatech.edu Abstract Using a sum-roduct result
More informationCONGRUENCE PROPERTIES MODULO 5 AND 7 FOR THE POD FUNCTION
CONGRUENCE PROPERTIES MODULO 5 AND 7 FOR THE POD FUNCTION SILVIU RADU AND JAMES A. SELLERS Abstract. In this aer, we rove arithmetic roerties modulo 5 7 satisfied by the function odn which denotes the
More informationElementary Proof That There are Infinitely Many Primes p such that p 1 is a Perfect Square (Landau's Fourth Problem)
Elementary Proof That There are Infinitely Many Primes such that 1 is a Perfect Square (Landau's Fourth Problem) Stehen Marshall 7 March 2017 Abstract This aer resents a comlete and exhaustive roof of
More informationWhen do Fibonacci invertible classes modulo M form a subgroup?
Calhoun: The NPS Institutional Archive DSace Reository Faculty and Researchers Faculty and Researchers Collection 2013 When do Fibonacci invertible classes modulo M form a subgrou? Luca, Florian Annales
More informationarxiv: v1 [math.nt] 9 Sep 2015
REPRESENTATION OF INTEGERS BY TERNARY QUADRATIC FORMS: A GEOMETRIC APPROACH GABRIEL DURHAM arxiv:5090590v [mathnt] 9 Se 05 Abstract In957NCAnkenyrovidedanewroofofthethreesuarestheorem using geometry of
More informationTAIL OF A MOEBIUS SUM WITH COPRIMALITY CONDITIONS
#A4 INTEGERS 8 (208) TAIL OF A MOEBIUS SUM WITH COPRIMALITY CONDITIONS Akhilesh P. IV Cross Road, CIT Camus,Taramani, Chennai, Tamil Nadu, India akhilesh.clt@gmail.com O. Ramaré 2 CNRS / Institut de Mathématiques
More informationYOUNESS LAMZOURI H 2. The purpose of this note is to improve the error term in this asymptotic formula. H 2 (log log H) 3 ζ(3) H2 + O
ON THE AVERAGE OF THE NUMBER OF IMAGINARY QUADRATIC FIELDS WITH A GIVEN CLASS NUMBER YOUNESS LAMZOURI Abstract Let Fh be the number of imaginary quadratic fields with class number h In this note we imrove
More informationON FREIMAN S 2.4-THEOREM
ON FREIMAN S 2.4-THEOREM ØYSTEIN J. RØDSETH Abstract. Gregory Freiman s celebrated 2.4-Theorem says that if A is a set of residue classes modulo a rime satisfying 2A 2.4 A 3 and A < /35, then A is contained
More informationPrimes of the form ±a 2 ± qb 2
Stud. Univ. Babeş-Bolyai Math. 58(2013), No. 4, 421 430 Primes of the form ±a 2 ± qb 2 Eugen J. Ionascu and Jeff Patterson To the memory of Professor Mircea-Eugen Craioveanu (1942-2012) Abstract. Reresentations
More informationarxiv: v1 [math.nt] 11 Jun 2016
ALMOST-PRIME POLYNOMIALS WITH PRIME ARGUMENTS P-H KAO arxiv:003505v [mathnt Jun 20 Abstract We imrove Irving s method of the double-sieve [8 by using the DHR sieve By extending the uer and lower bound
More informationTHE DISTRIBUTION OF ADDITIVE FUNCTIONS IN SHORT INTERVALS ON THE SET OF SHIFTED INTEGERS HAVING A FIXED NUMBER OF PRIME FACTORS
Annales Univ. Sci. Budaest., Sect. Com. 38 202) 57-70 THE DISTRIBUTION OF ADDITIVE FUNCTIONS IN SHORT INTERVALS ON THE SET OF SHIFTED INTEGERS HAVING A FIXED NUMBER OF PRIME FACTORS J.-M. De Koninck Québec,
More informationarxiv: v5 [math.nt] 22 Aug 2013
Prerint, arxiv:1308900 ON SOME DETERMINANTS WITH LEGENDRE SYMBOL ENTRIES arxiv:1308900v5 [mathnt] Aug 013 Zhi-Wei Sun Deartment of Mathematics, Nanjing University Nanjing 10093, Peole s Reublic of China
More informationMath 261 Exam 2. November 7, The use of notes and books is NOT allowed.
Math 261 Eam 2 ovember 7, 2018 The use of notes and books is OT allowed Eercise 1: Polynomials mod 691 (30 ts In this eercise, you may freely use the fact that 691 is rime Consider the olynomials f( 4
More informationOn the Greatest Prime Divisor of N p
On the Greatest Prime Divisor of N Amir Akbary Abstract Let E be an ellitic curve defined over Q For any rime of good reduction, let E be the reduction of E mod Denote by N the cardinality of E F, where
More information#A37 INTEGERS 15 (2015) NOTE ON A RESULT OF CHUNG ON WEIL TYPE SUMS
#A37 INTEGERS 15 (2015) NOTE ON A RESULT OF CHUNG ON WEIL TYPE SUMS Norbert Hegyvári ELTE TTK, Eötvös University, Institute of Mathematics, Budaest, Hungary hegyvari@elte.hu François Hennecart Université
More informationEötvös Loránd University Faculty of Informatics. Distribution of additive arithmetical functions
Eötvös Loránd University Faculty of Informatics Distribution of additive arithmetical functions Theses of Ph.D. Dissertation by László Germán Suervisor Prof. Dr. Imre Kátai member of the Hungarian Academy
More information#A64 INTEGERS 18 (2018) APPLYING MODULAR ARITHMETIC TO DIOPHANTINE EQUATIONS
#A64 INTEGERS 18 (2018) APPLYING MODULAR ARITHMETIC TO DIOPHANTINE EQUATIONS Ramy F. Taki ElDin Physics and Engineering Mathematics Deartment, Faculty of Engineering, Ain Shams University, Cairo, Egyt
More informationSTRINGS OF CONSECUTIVE PRIMES IN FUNCTION FIELDS NOAM TANNER
STRINGS OF CONSECUTIVE PRIMES IN FUNCTION FIELDS NOAM TANNER Abstract In a recent paper, Thorne [5] proved the existence of arbitrarily long strings of consecutive primes in arithmetic progressions in
More informationHASSE INVARIANTS FOR THE CLAUSEN ELLIPTIC CURVES
HASSE INVARIANTS FOR THE CLAUSEN ELLIPTIC CURVES AHMAD EL-GUINDY AND KEN ONO Astract. Gauss s F x hyergeometric function gives eriods of ellitic curves in Legendre normal form. Certain truncations of this
More informationClass Numbers and Iwasawa Invariants of Certain Totally Real Number Fields
Journal of Number Theory 79, 249257 (1999) Article ID jnth.1999.2433, available online at htt:www.idealibrary.com on Class Numbers and Iwasawa Invariants of Certain Totally Real Number Fields Dongho Byeon
More informationThe Fibonacci Quarterly 44(2006), no.2, PRIMALITY TESTS FOR NUMBERS OF THE FORM k 2 m ± 1. Zhi-Hong Sun
The Fibonacci Quarterly 44006, no., 11-130. PRIMALITY TESTS FOR NUMBERS OF THE FORM k m ± 1 Zhi-Hong Sun eartment of Mathematics, Huaiyin Teachers College, Huaian, Jiangsu 3001, P.R. China E-mail: zhsun@hytc.edu.cn
More informationGENERALIZING THE TITCHMARSH DIVISOR PROBLEM
GENERALIZING THE TITCHMARSH DIVISOR PROBLEM ADAM TYLER FELIX Abstract Let a be a natural number different from 0 In 963, Linni roved the following unconditional result about the Titchmarsh divisor roblem
More informationOn the irreducibility of a polynomial associated with the Strong Factorial Conjecture
On the irreducibility of a olynomial associated with the Strong Factorial Conecture Michael Filaseta Mathematics Deartment University of South Carolina Columbia, SC 29208 USA E-mail: filaseta@math.sc.edu
More informationCharacteristics of Fibonacci-type Sequences
Characteristics of Fibonacci-tye Sequences Yarden Blausa May 018 Abstract This aer resents an exloration of the Fibonacci sequence, as well as multi-nacci sequences and the Lucas sequence. We comare and
More informationOn generalizing happy numbers to fractional base number systems
On generalizing hay numbers to fractional base number systems Enriue Treviño, Mikita Zhylinski October 17, 018 Abstract Let n be a ositive integer and S (n) be the sum of the suares of its digits. It is
More informationANALYTIC NUMBER THEORY AND DIRICHLET S THEOREM
ANALYTIC NUMBER THEORY AND DIRICHLET S THEOREM JOHN BINDER Abstract. In this aer, we rove Dirichlet s theorem that, given any air h, k with h, k) =, there are infinitely many rime numbers congruent to
More informationNOTES. The Primes that Euclid Forgot
NOTES Eite by Sergei Tabachnikov The Primes that Eucli Forgot Paul Pollack an Enrique Treviño Abstract. Let q 2. Suosing that we have efine q j for all ale j ale k, let q k+ be a rime factor of + Q k j
More informationArithmetic Consequences of Jacobi s Two-Squares Theorem
THE RAMANUJAN JOURNAL 4, 51 57, 2000 c 2000 Kluwer Academic Publishers. Manufactured in The Netherlands. Arithmetic Consequences of Jacobi s Two-Squares Theorem MICHAEL D. HIRSCHHORN School of Mathematics,
More informationSQUAREFREE VALUES OF QUADRATIC POLYNOMIALS COURSE NOTES, 2015
SQUAREFREE VALUES OF QUADRATIC POLYNOMIALS COURSE NOTES, 2015 1. Squarefree values of olynomials: History In this section we study the roblem of reresenting square-free integers by integer olynomials.
More informationFrobenius Elements, the Chebotarev Density Theorem, and Reciprocity
Frobenius Elements, the Chebotarev Density Theorem, and Recirocity Dylan Yott July 30, 204 Motivation Recall Dirichlet s theorem from elementary number theory. Theorem.. For a, m) =, there are infinitely
More informationSOME REMARKS ON ARTIN'S CONJECTURE
Canad. Math. Bull. Vol. 30 (1), 1987 SOME REMARKS ON ARTIN'S CONJECTURE BY M. RAM MURTY AND S. SR1NIVASAN ABSTRACT. It is a classical conjecture of E. Artin that any integer a > 1 which is not a perfect
More informationPETER J. GRABNER AND ARNOLD KNOPFMACHER
ARITHMETIC AND METRIC PROPERTIES OF -ADIC ENGEL SERIES EXPANSIONS PETER J. GRABNER AND ARNOLD KNOPFMACHER Abstract. We derive a characterization of rational numbers in terms of their unique -adic Engel
More information2 Asymptotic density and Dirichlet density
8.785: Analytic Number Theory, MIT, sring 2007 (K.S. Kedlaya) Primes in arithmetic rogressions In this unit, we first rove Dirichlet s theorem on rimes in arithmetic rogressions. We then rove the rime
More informationQUADRATIC RECIPROCITY
QUADRATIC RECIPROCITY JORDAN SCHETTLER Abstract. The goals of this roject are to have the reader(s) gain an areciation for the usefulness of Legendre symbols and ultimately recreate Eisenstein s slick
More informationDIRICHLET S THEOREM ON PRIMES IN ARITHMETIC PROGRESSIONS. 1. Introduction
DIRICHLET S THEOREM ON PRIMES IN ARITHMETIC PROGRESSIONS INNA ZAKHAREVICH. Introduction It is a well-known fact that there are infinitely many rimes. However, it is less clear how the rimes are distributed
More information2 Asymptotic density and Dirichlet density
8.785: Analytic Number Theory, MIT, sring 2007 (K.S. Kedlaya) Primes in arithmetic rogressions In this unit, we first rove Dirichlet s theorem on rimes in arithmetic rogressions. We then rove the rime
More informationWhen do the Fibonacci invertible classes modulo M form a subgroup?
Annales Mathematicae et Informaticae 41 (2013). 265 270 Proceedings of the 15 th International Conference on Fibonacci Numbers and Their Alications Institute of Mathematics and Informatics, Eszterházy
More informationA FEW EQUIVALENCES OF WALL-SUN-SUN PRIME CONJECTURE
International Journal of Mathematics & Alications Vol 4, No 1, (June 2011), 77-86 A FEW EQUIVALENCES OF WALL-SUN-SUN PRIME CONJECTURE ARPAN SAHA AND KARTHIK C S ABSTRACT: In this aer, we rove a few lemmas
More informationResearch Article New Mixed Exponential Sums and Their Application
Hindawi Publishing Cororation Alied Mathematics, Article ID 51053, ages htt://dx.doi.org/10.1155/01/51053 Research Article New Mixed Exonential Sums and Their Alication Yu Zhan 1 and Xiaoxue Li 1 DeartmentofScience,HetaoCollege,Bayannur015000,China
More informationCONGRUENCES SATISFIED BY APÉRY-LIKE NUMBERS
International Journal of Number Theory Vol 6, No 1 (2010 89 97 c World Scientific Publishing Comany DOI: 101142/S1793042110002879 CONGRUENCES SATISFIED BY APÉRY-LIKE NUMBERS HENG HUAT CHAN, SHAUN COOPER
More informationUniversity of Bristol - Explore Bristol Research. Peer reviewed version. Link to published version (if available): 10.
Booker, A. R., & Pomerance, C. (07). Squarefree smooth numbers and Euclidean rime generators. Proceedings of the American Mathematical Society, 45(), 5035-504. htts://doi.org/0.090/roc/3576 Peer reviewed
More informationTHE DIOPHANTINE EQUATION x 4 +1=Dy 2
MATHEMATICS OF COMPUTATION Volume 66, Number 9, July 997, Pages 347 35 S 005-57897)0085-X THE DIOPHANTINE EQUATION x 4 +=Dy J. H. E. COHN Abstract. An effective method is derived for solving the equation
More informationDigitally delicate primes
Digitally elicate rimes Jackson Hoer Paul Pollack Deartment of Mathematics University of Georgia Athens, Georgia 30602 Tao has shown that in any fixe base, a ositive roortion of rime numbers cannot have
More information#A8 INTEGERS 12 (2012) PARTITION OF AN INTEGER INTO DISTINCT BOUNDED PARTS, IDENTITIES AND BOUNDS
#A8 INTEGERS 1 (01) PARTITION OF AN INTEGER INTO DISTINCT BOUNDED PARTS, IDENTITIES AND BOUNDS Mohammadreza Bidar 1 Deartment of Mathematics, Sharif University of Technology, Tehran, Iran mrebidar@gmailcom
More information