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Dietmar Berwanger

RWTH Aachen | RWTH
Mathematische Grundlagen der Informatik | MGI
52056 Aachen, Germany

Office: 4119 (E1) / Ahornstr. 55
Phone: (+49) 241 802 17 15 • Fax: (+49) 241 802 22 15
Email: berwanger@logic.rwth-aachen.de

Research

I am a research associate in the Logic and Complexity group of Erich Grädel. Previously, I have been at EPF Lausanne and LaBRI Bordeaux.

My research is on logical and algorithmic foundations of interactive systems, in particular:

Teaching

Office hours: Monday, 1:30 -- 3:30 pm. Other times on request.

Publications

[1] D. Berwanger, Admissibility in infinite games, Proceedings of STACS 2007 -- Symposium on Theoretical Aspects of Computer Science, Springer-Verlag. Forthcoming.
BibTeX, Abstract
[2] D. Berwanger, E. Grädel, and G. Lenzi, The variable hierarchy of the mu-calculus is strict, Theory of Computing Systems, Selected Papers from STACS 2005, Springer-Verlag. Forthcoming.
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[3] D. Berwanger and D. Janin, Automata on directed graphs: edge versus vertex marking, in Proceedings of ICGT 2006 -- Graph Transformation, vol. 4178 of LNCS, pp. 46--60, Springer-Verlag, 2006
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[4] D. Berwanger, A. Dawar, P. Hunter, S. Kreutzer, DAG-width and parity games, in Proceedings of STACS 2006 -- Symposium on Theoretical Aspects of Computer Science, vol. 3884 of LNCS, pp. 524--436, Springer-Verlag, 2006.
BibTeX, Abstract
[5] D. Berwanger and E. Grädel, Entanglement - A measure for the complexity of directed graphs with applications to logic and games., in Proceedings of LPAR 2004 -- International Conference on Logic for Programming and Automated Reasoning, vol. 3452 of LNCS, pp. 209-223, Springer-Verlag, 2005.
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[6] D. Berwanger and G. Lenzi, The variable hierarchy of the mu-calculus is strict, in STACS 2005, Proceedings of the 22nd Symposium on Theoretical Aspects of Computer Science, vol. 3404 of LNCS, pp. 97-109, Springer-Verlag, 2005.
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[7] D. Berwanger, Games and logical expressiveness. PhD thesis, RWTH Aachen, 2005.
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[8] D. Berwanger and E. Grädel, Fixed-point logics and solitaire games. Theory of Computing Systems, vol. 37, pp. 675-694, 2004.
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[9] D. Berwanger, Game logic is strong enough for parity games, Studia Logica, vol. 75, no. 2, pp. 205-219, 2003. Special issue on Game Logic and Game Algebra edited by M. Pauly and R. Parikh.
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[10] D. Berwanger, E. Grädel, and S. Kreutzer, Once upon a time in the west. Determinacy, complexity and definability of path games, in Proceedings of the 10th International Conference on Logic for Programming and Automated Reasoning, vol. 2850 of LNCS, pp. 226-240, Springer-Verlag, 2003.
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[11] D. Berwanger and A. Blumensath, Automata for guarded fixed point logics, in Automata, Logics, and Infinite Games (E. Grädel, W. Thomas, and T. Wilke, eds.), no. 2500 in LNCS, ch. 19, pp. 343-355, Springer Verlag, 2002.
BibTeX
[12] D. Berwanger and E. Grädel, Fixed point formulae and solitaire games, in Proceedings of the 2nd International Workshop on Complexity in Automated Deduction, CiAD 2002, 2002.
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[13] D. Berwanger, E. Grädel, and G. Lenzi, On the variable hierarchy of the modal mu-calculus, in Computer Science Logic, CSL 2002 (J. Bradfield, ed.), vol. 2471 of LNCS, pp. 352-366, Springer-Verlag, 2002.
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[14] D. Berwanger and A. Blumensath, The monadic theory of tree-like structures, in Automata, Logics, and Infinite Games (E. Grädel, W. Thomas, and T. Wilke, eds.), no. 2500 in LNCS, ch. 16, pp. 285-301, Springer Verlag, 2002.
BibTeX
[15] D. Berwanger and E. Grädel, Games and model checking for guarded logics, in Proceedings of the 8th International Conference on Logic for Programming and Automated Reasoning, LPAR 2001, Havana (R. Nieuwenhuis and A. Voronkov, eds.), vol. 2250 of LNCS, Springer-Verlag, 2001.
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Work in progress

Web

I maintain the website of the GAMES Research Training Network and the collection of Open Problems in Finite Model Theory.

Dietmar Berwanger • September, 2007