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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 18 615
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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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| == 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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| == List of Publications==
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| :'''Refereed Publications'''
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| :<BR> C. Kravvaritis and M. Mitrouli, The growth factor of
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| :a Hadamard matrix of order 16 is 16, 2009, Numer. Linear
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| :Algebra Appl., to appear.
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| :<BR> C. Kravvaritis and M. Mitrouli, A technique for computing
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| :minors of binary Hadamard matrices and application to the Growth
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| :Problem, Electron. Trans. Numer. Anal., 31 (2008), 49-67.
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| :<BR> J. Geiser and C. Kravvaritis, Overlapping operator splitting methods and
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| :applications in stiff differential equations, Neural Parallel Sci. Comput., 16
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| :(2008), 189-200.
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| :<BR> C. Kravvaritis and M. Mitrouli, Compound matrices: properties,
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| :numerical issues and analytical computations, Numer. Algorithms,
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| :(2008), to appear.
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| :<BR> J. Geiser and C. Kravvaritis, A Domain
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| :Decomposition Method based on the Iterative Operator Splitting
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| :Method, Appl. Numer. Math., (2008), in press.
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| :<BR> C. Kravvaritis and M. Mitrouli, An Algorithm to Find Values of Minors of
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| :Hadamard Matrices, Bull. Greek Math. Soc., 54 (2007), 221-238.
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| :<BR> C. Kravvaritis and M. Mitrouli, Evaluation of Minors associated to
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| :weighing matrices, Linear Algebra Appl., 426 (2007), 774-809.
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| :<BR> C. Kravvaritis, M. Mitrouli and J. Seberry, On the Pivot Structure for
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| :the Weighing Matrix W(12,11), Linear Multilinear Algebra, 55:5 (2007), 471-:490.
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| :<BR> C. Kravvaritis and M. Mitrouli, Determinant Evaluations for Weighing
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| :Matrices, Int. J. Pure Appl. Math., 34:2 (2007), 163-176.
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| :<BR> J. Geiser and C. Kravvaritis, Weighted Iterative Operator Splitting
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| :Methods and Applications, Lecture Notes in Comput. Sci., 4310 (2007), 48-55.
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| :em <BR> S. Georgiou and C. Kravvaritis, New Good Quasi-Cyclic Codes over GF
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| :(3), Int. J. Algebra, 1:1 (2007), 11-24.
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| :<BR> C. Kravvaritis, M. Mitrouli and J. Seberry, Counting Techniques
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| :Specifying the Existence of Submatrices in Weighing Matrices, Lecture Notes in
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| :Comput. Sci., 3718 (2005), 294-305.
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| :<BR> C. Kravvaritis, E. Lappas and M. Mitrouli, An algorithm to find values of
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| :minors of weighing matrices, Lecture Notes in Comput. Sci., 3401 (2005), 375-:382.
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| :<BR> C. Kravvaritis, M. Mitrouli and J. Seberry, On the growth
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| :problem for skew and symmetric conference matrices, Linear Algebra
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| :Appl., 403 (2005), 183-206.
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| == Selected Publications ==
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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, joint work 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, to appear, joint work 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., 2008, to appear joint work 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, joint work 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, joint work 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, joint work with M. Mitrouli and J. Seberry.
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| <HR>
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