This book constitutes the refereed proceedings of the 32nd International Symposium on Mathematical Foundations of Computer Science, MFCS 2007, held in Cesky Krumlov, Czech Republic, August 2007.

The 61 revised full papers presented together with the full papers or abstracts of five invited talks address all current aspects in theoretical computer science and its mathematical foundations.

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This book constitutes the research papers presented at the 4th International Workshop, RP 2010 held in Brno, Czech Republic, August 28-29, 2010 and was co-located with Joint MFCS and CSL 2010 (35th International Symposiums on Mathematical Foundations of Computer Science and 19th EACSL Annual Conferences on Computer Science Logic). The revised 9 full papers and the 4 invited talks of this workshop reflect reachability problems that appear in algebraic structures, computational models, hybrid systems and verification. Reachability is a fundamental problem in the context of many models and...