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| ; '''Address:'''
| | #REDIRECT [[Dr. Christos Kravvaritis]] |
| : TU München
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| : Institut für Informatik
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| : Boltzmannstr. 3
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| : 85748 Garching b. München
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| ; '''Office:'''
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| : MI 02.05.036
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| ; '''Email:'''
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| : christos.kravvaritis@in.tum.de
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| ; '''Phone:'''
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| : (089) 289 18 618
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| ; '''Fax:'''
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| : (089) 289 18 607
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| ; '''Personal Homepage:'''
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| : [http://ckravv.googlepages.com http://ckravv.googlepages.com]
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| ; '''Office Hours'''
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| : By arrangement
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| <HR>
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| == Forschungsgebiete (Research Area) ==
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| * Numerische Lineare Algebra
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| * Multigridverfahren
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| * Strukturierte Matrizen (Hadamard, weighing, compound)
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| * Determinanten
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| * Numerische Methoden für ODEs und PDEs
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| * Codierungstheorie
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| == Personal data ==
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| | |
| === CV ===
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| {| class="wikitable"
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| |-
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| | '''07.11.1980''' || Born in Athens
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| |-
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| | '''May 1998''' || Abitur (Deutsche Schule Athen)
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| |-
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| | '''Sep. 1998 - Jun. 2002''' || Studies of Mathematics (major in Applied Mathematics) at the National & Kapodistrian University of Athens
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| |-
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| | '''Jun. 2002''' || Dipl.-Math.
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| |-
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| | '''Sep. 2002 - Oct. 2004''' || Master of Science in Applied Mathmatics, National & Kapodistrian University of Athens
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| |-
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| | '''May 2005 - Jul. 2008''' || Wissenschaftlicher Mitarbeiter, National & Kapodistrian University of Athens
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| |-
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| | '''Jul. 2008''' || Dr. rer. nat.
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| |-
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| | '''Jan. 2009 - Jun. 2010''' || Forschunsstipendiat der Alexander von Humoldt-Stiftung, Department of Computer Science, Technical University of Munich
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| |}
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| <HR>
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| == List of Publications==
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| '''Refereed Publications'''
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| : C. Kravvaritis and M. Mitrouli, The growth factor of a Hadamard matrix of order 16 is 16, 2009, Numer. Linear Algebra Appl., to appear.
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| : C. Kravvaritis and M. Mitrouli, Compound matrices: properties, numerical issues and analytical computations, Numer. Algorithms, (2009), 50 (2009), 155-177.
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| : J. Geiser and C. Kravvaritis, A Domain Decomposition Method based on the Iterative Operator Splitting Method, Appl. Numer. Math., 59 (2009), 608-623.
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| : C. Kravvaritis and M. Mitrouli, A technique for computing minors of binary Hadamard matrices and application to the Growth Problem, Electron. Trans. Numer. Anal., 31 (2008), 49-67.
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| : J. Geiser and C. Kravvaritis, Overlapping operator splitting methods and applications in stiff differential equations, Neural Parallel Sci. Comput., 16 (2008), 189-200.
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| : C. Kravvaritis and M. Mitrouli, An Algorithm to Find Values of Minors of Hadamard Matrices, Bull. Greek Math. Soc., 54 (2007), 221-238.
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| : C. Kravvaritis and M. Mitrouli, Evaluation of Minors associated to weighing matrices, Linear Algebra Appl., 426 (2007), 774-809.
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| : C. Kravvaritis, M. Mitrouli and J. Seberry, On the Pivot Structure for the Weighing Matrix W(12,11), Linear Multilinear Algebra, 55:5 (2007), 471-:490.
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| : C. Kravvaritis and M. Mitrouli, Determinant Evaluations for Weighing Matrices, Int. J. Pure Appl. Math., 34:2 (2007), 163-176.
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| : J. Geiser and C. Kravvaritis, Weighted Iterative Operator Splitting Methods and Applications, Lecture Notes in Comput. Sci., 4310 (2007), 48-55.
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| : S. Georgiou and C. Kravvaritis, New Good Quasi-Cyclic Codes over GF(3), Int. J. Algebra, 1:1 (2007), 11-24.
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| : C. Kravvaritis, M. Mitrouli and J. Seberry, Counting Techniques Specifying the Existence of Submatrices in Weighing Matrices, Lecture Notes in Comput. Sci., 3718 (2005), 294-305.
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| : C. Kravvaritis, E. Lappas and M. Mitrouli, An algorithm to find values of minors of weighing matrices, Lecture Notes in Comput. Sci., 3401 (2005), 375-382.
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| : C. Kravvaritis, M. Mitrouli and J. Seberry, On the growth problem for skew and symmetric conference matrices, Linear Algebra Appl., 403 (2005), 183-206.
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| '''Papers in refereed conference proceedings'''
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| : C. Kravvaritis, Analytical Formulas for Minors of Orthogonal Matrices and an Application, «ICTCAM ’07 – International Conference on Trends in Computational and Applied Mathematics», 237-240, (Bucharest – Romania, June 2007).
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| : C. Kravvaritis, Growth Factors for Orthogonal (0,1,-1) Matrices, «Hellenic Conference on Mathematical Education», 531-541, (Kozani – Greece, November 2007).
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| '''Submitted papers'''
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| :J. Geiser and C. Kravvaritis, An Operator Splitting method with embedded Newton method. (J. Comput. Appl. Math.) - February 2008
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| :J. Geiser and C. Kravvaritis, Extended Iterative Operator Splitting methods for stiff problems and applications. (J. Comput. Appl. Math.) - July 2008
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| :C. Kravvaritis and M. Mitrouli, On some numerical properties of Hadamard matrices. (Appl. Numer. Math.) - December 2008
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| :C. Kravvaritis, Determinant Evaluations for Binary Circulant Matrices. (Electron. J. Linear Algebra) - January 2009
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| '''Theses'''
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| :Christos Kravvaritis, Weighing matrices and their contribution to the study of the growth problem, Master Thesis, University of Athens, 2004.
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| :Christos Kravvaritis, A determinant computations framework for Weighing matrices and application to the growth problem, PhD Thesis, University of Athens, 2008.
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| <HR>
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| == Selected Publications ==
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| <BR>
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| [http://ckravv.googlepages.com/had16_7nlaa.pdf The growth factor of a Hadamard matrix of order 16 is 16], Numer. Linear Algebra Appl., 2009, to appear, with M. Mitrouli.
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| <BR>
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| [http://ckravv.googlepages.com/orthogonal3.pdf A technique for computing minors of binary Hadamard matrices and apllication to the Growth Problem], Electron. Trans. Numer. Anal., 31 (2008) 49-67, with M. Mitrouli.
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| <BR>
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| [http://ckravv.googlepages.com/compounds_na.pdf Compound matrices: properties, numerical issues and analytical computations], Numer. Algorithms, (2009), 50 (2009), 155-177, with M. Mitrouli.
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| <BR>
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| [http://ckravv.googlepages.com/apnum07_2els_5.pdf A Domain Decomposition Method based on the Iterative Operator Splitting Method], Appl. Numer. Math., 59 (2009), 608-623, with J. Geiser.
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| <BR>
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| [http://ckravv.googlepages.com/laa2.pdf Evaluation of Minors associated to weighing matrices], Linear Algebra Appl., 426 (2007) 774-809, with M. Mitrouli.
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| <BR>
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| [http://ckravv.googlepages.com/lama1.pdf On the Pivot Structure for the Weighing Matrix W(12,11)], Linear Multrilinear Algebra, 34 (2007) 163-176, with M. Mitrouli and J. Seberry.
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| <BR>
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| [http://ckravv.googlepages.com/laa1.pdf On the growth problem for skew and symmetric conference matrices], Linear Algebra Appl., 403 (2005) 183-206, with M. Mitrouli and J. Seberry.
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| <HR>
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| == Forthcoming conferences ==
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| <BR>
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| M3ST 09, 3-5 September 2009, Poros island, Greece[http://www.math.uoa.gr/M3ST09/index.html]
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| <BR>
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| 9. GAMM Workshop on Applied and Numerical Linear Algebra, September 10-11, 2009, Zürich, Switzerland [http://www.sam.math.ethz.ch/GAMM09/]
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| <BR>
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| ICNAAM 2009, 18-22 September 2009, Rethymno, Creta island, Greece [http://www.icnaam.org/]
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| <BR>
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| Modelling and Development of Intelligent Systems, October 22-25, 2009, Sibiu, Romania [http://conferences.ulbsibiu.ro/mdis09/]
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| <BR>
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| HERCMA 2009, September 24-26, 2009, University of Economics & Business, Athens, Greece [http://www.aueb.gr/conferences/hercma2009/]
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| <BR>
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| SIAM Conference on Applied Linear Algebra, 26-29 October 2009, Monterey, California [http://www.siam.org/meetings/la09/]
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| <BR>
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| Coimbra Meeting on 0-1 Matrix Theory and Related Topics, June 17-19, 2010, Coimbra, Portugal [http://www.mat.uc.pt/~cmf/01MatrixTheory]
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| <BR>
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| Sixteenth Conference of the International Linear Algebra Society, 21-25 June 2010, Pisa, Italy [http://www.dm.unipi.it/~ilas2010/]
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