Javier Esparza received his primary degree in Theoretical Physics and in 1990 his PhD in Computer Science from the University of Zaragoza. After positions at the University of Hildesheim, the University of Edinburgh, and the Technical University of Munich, he then held professorships at the University of Edinburgh and the University of Stuttgart, and finally returned to TU Munich where he currently holds the Chair of Foundations of Software Reliability and Theoretical Computer Science.

This Festschrift celebrates Javier’s contributions on the occasion of his 60th birthday, the contributions reflect the breadth and depth of his successes in Petri nets, concurrency in general, distributed and probabilistic systems, games, formal languages, logic, program analysis, verification, and synthesis.

This book constitutes the refereed proceedings of the 35th Conference on Current Trends in Theory and Practice of Computer Science, SOFSEM 2009, held in Špindleruv Mlýn, Czech Republic, in January 2009.

The 49 revised full papers, presented together with 9 invited contributions, were carefully reviewed and selected from 132 submissions. SOFSEM 2009 was organized around the following four tracks: Foundations of Computer Science; Theory and Practice of Software Services; Game Theoretic Aspects of E-commerce; and Techniques and Tools for Formal Verification.

Javier Esparza received his primary degree in Theoretical Physics and in 1990 his PhD in Computer Science from the University of Zaragoza. After positions at the University of Hildesheim, the University of Edinburgh, and the Technical University of Munich, he then held professorships at the University of Edinburgh and the University of Stuttgart, and finally returned to TU Munich where he currently holds the Chair of Foundations of Software Reliability and Theoretical Computer Science.

This Festschrift celebrates Javier’s contributions on the occasion of his 60th birthday, the contributions reflect the breadth and depth of his successes in Petri nets, concurrency in general, distributed and probabilistic systems, games, formal languages, logic, program analysis, verification, and synthesis.

This book constitutes the refereed proceedings of the 35th Conference on Current Trends in Theory and Practice of Computer Science, SOFSEM 2009, held in Špindleruv Mlýn, Czech Republic, in January 2009.

The 49 revised full papers, presented together with 9 invited contributions, were carefully reviewed and selected from 132 submissions. SOFSEM 2009 was organized around the following four tracks: Foundations of Computer Science; Theory and Practice of Software Services; Game Theoretic Aspects of E-commerce; and Techniques and Tools for Formal Verification.