Dimitrios Noutsos Professor, Department of Mathematics, University of Ioannina

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1 Dimitrios Noutsos Professor, Department of Mathematics, University of Ioannina PERSONAL INFO Name: Dimitrios Noutsos Date of birth: February 10, Position of birth: Neochori Ioannina Nationality: Greek Family: Married, three daughters Address: Velissariou str 62, Eleousa Ioannina Phone: POSITIONS STUDIES 2009 Professor, Department of Mathematics, University of Ioannina Spring semester: Sabbatical in Department of Mathematics, Washington State University, USA and Department of Physics and Mathematics, University Dell Insubria, Como, Italy 1995 Associate Professor, Department of Mathematics, University of Ioannina Assistant Professor, Department of Mathematics, University of Ioannina 1982 Lecturer, Department of Mathematics, University of Ioannina 1980 Phd degree in Numerical Analysis, Department of Mathematics, University of Ioannina 1976 Bachelor degree in Mathematics, Department of Mathematics, University of Ioannina 1988 Fall semester: Sabbatical in Department of computer Science, Purdue University, West Lafayette, Indiana, USA Numerical linear Algebra: RESEARCH INTERESTS Solution of large linear systems by iterative methods. Preconditioned conjugate gradient methods for the solution of Toeplitz and multilevel Toeplitz systems. Nonnegative matrices and Perron Frobenius theory. 1

2 RESEARCH PROJECTS PYTHAGORAS I : Support of research teams in Universities, Solution of Toeplitz systems and applications to Stochastic Models, Greek Ministry of Education and European Union, SOTIRIOS DAKARIS : Preconditioned conjugate gradient methods for the solution of ill-conditioned Toeplitz systems, University of Ioannina, Iterative methods and conjugate gradient methods for the numerical solution of large sparse linear systems, University of Ioannina, PENED 95 : Domain decomposition methods in non-overlapping subdomains for the numerical solution of partial differential equations, General Secretariat, Greek Ministry of Research and Development, PUBLICATIONS 1. D.J. Evans, A. Hadjidimos and D. Noutsos, Parallel Solution of Linear Systems by Quadrant Interlocking Factorisation Methods, Comput. Methods Appl. Mech. Engrg., 29 (1981) pp D.J. Evans, A. Hadjidimos and D. Noutsos, The Parallel Solution of Banded Linear Equations by the New Quadrant Interlocking Factorisation (Q.I.F.) Method, Int. Journ. Comp. Maths, 9(1981) pp A. Hadjidimos and D.Noutsos, Special Similarity Transformations in Connection with the Quadrant Interlocking Factorisation Techniques, Bull. of the Greek mathematical Society, 22 (1981) pp S. Galanis, A. Hadjidimos and D. Noutsos, On Different Classes of Monoparametric Stationary Iterative Methods for the Solution of Linear Systems, Math. Comput. Simulation, 28(1986) pp S. Galanis, A. Hadjidimos and D. Noutsos, On the Convergence of Monoparametric k-step Iterative Euler methods for the Solution of Linear Systems, Int. Journ. Comp. Maths 26(1988) pp S. Galanis, A. Hadjidimos and D. Noutsos, On the Equivalence of the k-step Iterative Euler methods and Successive Overrelaxation (SOR) Methods for k-cyclic Matrices, Math. Comput. Simulation 30(1988) pp S. Galanis, A. Hadjidimos and D. Noutsos, The Relationship between the Jacobi and the Successive Overrelaxation (SOR) Matrices of a k-cyclic Matrix, Computers Math. Applic. 17, No 10(1989) pp

3 8. S. Galanis, A. Hadjidimos and D. Noutsos, Optimum First and Second Order of Successive Overrelaxation Type Methods for Certain Classes of Matrices, BIT 29(1989) pp S. Galanis, A. Hadjidimos and D. Noutsos, On an SSOR Matrix Relationship and its Consequences, Int. J. Numer. Meth. Engrg 27(1989) pp A. Hadjidimos and D. Noutsos, The Young-Eidson Algorithm: Applications and Extensions, SIAM J. matrix Anal. Appl. 11 No 4 (1990) pp S. Galanis, A. Hadjidimos, D. Noutsos and M. Tzoumas, On the Optimum Relaxation Factor Associated with p-cyclic Matrices, Linear Algebra Appl (1992) pp A. Hadjidimos and D. Noutsos, On a Matrix Identity Connecting Iteration Operators Associated with a p-cyclic Matrix, Linear Algebra Appl. 182(1993) pp D. Noutsos, Optimal Stretched Parameters for the SOR method, Journal of Comput. Appl. Math. 48(1993) pp A. Hadjidimos, D. Noutsos and M. Tzoumas, Exact SOR Convergence Regions for a General class of p- Cyclic Matrices, BIT 35 (1995) pp A. Hadjidimos, D. Noutsos and M. Tzoumas, On the Exact p-cyclic SSOR Convergence Domains, Linear Algebra Appl.,232 (1996) pp A. Hadjidimos, D. Noutsos and M. Tzoumas, On the Convergence Domains of the p-cyclic SOR, J. of Comput. Appl. Math., 72 (1996) pp D. Noutsos An Operator Relation of the USSOR and the Jacobi iteration Matrices of a p-cyclic Matrix, SIAM Journal on Matrix Analysis and Applications 17 No3 (1996) pp S. Galanis, A. Hadjidimos and D. Noutsos, optimal p- Cyclic SOR for Copmlex Spectra, Linear Algebra Appl., 263 (1997) pp A. Hadjidimos, D. Noutsos and M. Tzoumas, Towards the Determination of the Optimal p-cyclic SSOR, J. Comput. Appl. Math., 90(1998), pp S. Galanis, A. Hadjidimos and D. Noutsos, A Young-Eidson s type Algorithm for Complex p-cyclic SOR Spectra, Linear Algebra Appl., 286 (1999) pp A. Hadjidimos, D. Noutsos and M. Tzoumas, Nonoverlapping Domain Decomposition: A Linear Algebra Viewpoint, Math Comput. Simulation, 51(2000), D. Noutsos and P. Vassalos, New Band Toeplitz Preconditioners for the Ill-conditioned Symmetric Positive Definite Toeplitz Systems, SIAM J. Matrix Anal. Appl., 23 No 3(2002), pp

4 23. A. Hadjidimos, D. Noutsos and M. Tzoumas, More on Modifications and Improvements of Clasical Iterative Schemes for Z-Matrices, Linear Algebra Appl., 364(2003), pp D. Noutsos, S. Serra Capizzano, and P. Vassalos, Spectral equivalence and matrix algebra preconditioners for multilevel Toeplitz Systems: a negative result, V. Olshevsky Ed., Contmp.Math., 323(2003) pp D. Noutsos, S. Serra Capizzano and P. Vassalos, Matrix algebra preconditioners for multilevel Toeplitz Systems do not ensure optimal convergence rate, V. Pan Ed., Theoretical Computer Science, 315(2004) pp D. Noutsos, S. Serra Capizzano and P. Vassalos, A preconditioning proposal for illconditioned Hermitian two-level Toeplitz systems,numer Linear Algebra with Appl., 12 No 2-3(2005) pp D. Noutsos and M. Tzoumas, On Optimal Improvements of Classical Iterative Schemes for Z- matrices, J. Comput. Appl. Math., 188 (2006) D. Noutsos, S. Serra Capizzano and P. Vassalos, Asymptotic behavior of the condition number of two level Toeplitz matrix sequences, Linear Algebra Appl., 395 (2005) pp D. Noutsos, On Perron-Frobenius property of matrices having some negative entries, Linear Algebra Appl. 412 (2006), no. 2-3, D. Noutsos, S. Serra Capizzano and P. Vassalos, Two-level Toeplitz preconditioning and approximation results, SIAM J. Sci. Comput. 28 (2006), no. 2, D. Noutsos, S. Serra Capizzano and P. Vassalos, Block band Toeplitz preconditioners derived from generating function approximations: analysis and applications, Numer. Math. 104 (2006), no. 3, T. K. Huckle and D. Noutsos, Preconditioning block Toeplitz matrices, Electronic Transaction on Numerical Analysis (ETNA) 29 (2007), D. Noutsos, S. Serra Capizzano and P. Vassalos, The conditioning of FD matrix sequences coming from semi-elliptic differential equations, Linear Algebra Appl. 428 (2008), D. Noutsos and P. Vassalos, Superlinear Convergence for PCG using Band plus Algebra Preconditioners for Toeplitz Systems, Computers and Mathematics with Applications, 56 (2008), D. Noutsos and M. Tsatsomeros, Reachability and Holdability of Nonnegative States, SIAM J. Matrix Anal. Appl., 30 (2) (2008),

5 36. D. Noutsos, On Stein-Rosenberg type theorems for nonnegative splittings, Linear Algebra Appl., 429 (8-9) (2008), D. Noutsos and M. Tsatsomeros, On the Numerical Characterization of the Reachability Cone for an Essentially Nonnegative Matrix, Linear Algebra Appl., 430 (4) (2009), D. Noutsos and P. Vassalos, Band plus Algebra Preconditioners for Two-Level Toeplitz Systems, BIT Numer Math 51 (2011), D. Noutsos and R.S. Varga, On the Perron-Frobenius theory for complex matrices, Linear Algebra Appl., 437 (4) (2012) D. Noutsos, S. Serra Capizzano and P. Vassalos, Essential spectral equivalence via multiple step preconditioning and applications to ill conditioned Toeplitz matrices, Linear Algebra Appl., 491 (2015) CONFERENCES 4th Conference on Numerical Methods, Miskolc, Hungary, August 24-30, International Congress on Computational and Applied Mathematics, Katholieke Universiteit Leuven, Belgium, July 23-28, First International Colloquium on Numerical Analysis, Plovdiv, Bulgaria, August 13-17, st Hellenic-European Conference on Mathematics and Informatics ( HERMIS 92), Athens University of Economics and Business, Athens, Greece, September 25 26, nd Hellenic-European Conference on Mathematics and Informatics ( HERMIS 94), Athens University of Economics and Business, Athens, Greece, September, 22 24, 1994 (organizer of the minisimposium on Iterative Methods ). Second IMACS International Symposium on Iterative Methods in Linear Algebra, June 17-20, 1995, Blagoevgrad, Bulgaria. 3 rd Hellenic-European Conference on Mathematics and Informatics (HERMIS 96), Athens University of Economics and Business, Athens, Greece, September, 26 28, 1996 (organizer of the minisimposium on Iterative Methods ). 11 th International Conference on Domain Decomposition Methods, July, 1998, University of Greenwich, Avery Hill Campus, Avery Hill Road, London SE9, UK. 5

6 4 th Hellenic-European Conference on Computational Mathematics and Applications (HERCMA 98), Athens University of Economics and Business, Athens, Greece, September, 24 26, 1998 (organizer of the minisimposium on Iterative Methods ). 5th IMACS Conference on Iterative Methods in Scientific Computing, May 28-31, 2001, Heraklion, Crete, Greece, (invited). 5 th Hellenic-European Conference on Computational Mathematics and Applications (HERCMA 01), Athens University of Economics and Business, Athens, Greece, September, 20 22, International Conference on Structured Matrices, May 29 - June 1, 2002, Hong Kong, (invited). Workshop on Nonlinear Approximations in Numerical Analysis, June 22-25, 2003, Moscow, Russia. Workshop on Structured Numerical Linear Algebra Problems: Algorithms and Applications, September 19-24, 2004, Cortona, Italy, (invited). Hellenic Conference on Numerical Analysis, honoring Apostolos Hadjidimos, Department of Mathematics, University of Ioannina, Ioannina, June 3 4, 2005 (organizer). International Conference on Matrix Methods and Operator Equations, June 20-24, 2005, Moscow, Russia. 7 th Hellenic-European Conference on Computational Mathematics and Applications (HERCMA 05), Athens University of Economics and Business, Athens, Greece, September, 22 24, 2005 (organizer of the minisimposium: Iterative Methods for the solution of linear systems ). Applied Linear Algebra Conference honoring Richard Varga, Palic Serbia, October 13 15, Conference on Algorithmic and Numerical Aspects in Web Search, Pisa Italy, February 6 7, The 2nd International Conference on Structured Matrices, Hong Kong, June 8 11, GAMM-SIAM Conference on Applied Linear Algebra, Duesseldorf Germany, July 24 27, th Conference of the International Linear Algebra Society (ILAS-2007), Shanghai University, Shanghai, China, July 16 20, 2007 (invited in minisymposium). 6

7 HARRACOV-2007, Computational Linear Algebra with Applications, Harracov, Czech Republic, August 19 25, Conference in Numerical Analysis, NUMAN-2007, Kalamata, Greece, September 3 7, 2007 (member of organizing and Scientific committee). 8 th Hellenic-European Conference on Computational Mathematics and Applications (HERCMA 07), Athens University of Economics and Business, Athens, Greece, September, 20 22, Conference in Numerical Analysis, NUMAN-2008, Kalamata, Greece, September 1 5, 2008 (member of organizing and Scientific committee). 9 th Hellenic-European Conference on Computational Mathematics and Applications (HERCMA 09), Athens University of Economics and Business, Athens, Greece, September, 24 26, Applied Linear Algebra Conference honouring Hans Schneider, Nivi Sad, Serbia, May 24 28, th Conference of the International Linear Algebra Society (ILAS-2010), Pisa, Italy, June 21 25, 2010 (invited in minisymposium). Conference in Numerical Analysis, NUMAN-2010, Chania, Crete, Greece, September 15 18, 2010 (member of organizing and Scientific committee). Fifth Conference on Numerical Analysis, NUMAN-2012, Ioannina, Greece, September 5 8, 2012 (member of local organizing and Scientific committee). Structured Numerical Linear and Multilinear Algebra, Problems Analysis, Algorithms, and Applications, SLA 2012, KU Leuven, Belgium September 10-14, th Annual Meeting of the International Association of Applied Mathematics and Mechanics, GAMM 2013, Novi Sad, Serbia, March 18 22, th International Conference on Numerical Analysis, NUMAN-2014, Chania, Crete, Greece, September 2 5, 2014 (Invited speaker). Structured Matrices and Tensors: Analysis, Algorithms and Applications, Taipei, Taiwan, December 8-11, 2014 (Invited speaker). 7

8 REFEREING JOURNALS i) Linear Algebra and its Applications ii) Journal of Computational and Applied Mathematics iii) Applied Numerical Mathematics iv) Numerische Mathematik v) Numerical Algorithms vi) Numerical Linear Algebra with Applications. vii) SIAM Journal on Matrix Analysis and Applications. viii) SIAM Journal on Scientific Computing. ix) Journal of Computational Mathematics. x) Computers and Mathematics with Applications. xi) International Journal of Computer Mathematics. xii) The ANIAM Journal (a Journal of applied Mathematics). xiii) Indian Journal of Pure and Applied Mathematics. xiv) Calcolo. xv) Special Matrices. Reviewer in Mathematical Reviews. Guest Editor in the NUMAN 2007 special issue of the Journal of Computational and Applied Mathematics. Guest Editor in the NUMAN 2010 special issue of the Journal of Applied Numerical Mathematics. Guest Editor in the NUMAN 2012 special issue of the Journal of Applied Numerical Mathematics. Guest Editor in the NUMAN 2014 special issue of the Journal of Applied Numerical Mathematics. CITATIONS More than 200 citations of these publications are known. 8