Fundamentals of Computation Theory 13th International Symposium, FCT 2001, Riga, Latvia, August 22-24, 2001. Proceedings

ThesymposiaonFundamentalsofComputationTheoryareheldeverytwoyears. Following the tradition established at the ?rst FCT 1977, the conference brings together specialists in theoretical ?elds of Computer Science from various co- tries and stimulates mathematical research in theoretical computer science. - pics of interest for the satellite workshop onE?cientAlgorithms WEA2001 are: computational complexity, graph and network algorithms, ?ow and routing - gorithms, coloringandpartitioning, cutsandconnectivity, packingandcovering, scheduling algorithms, approximation algorithms, inapproximability results, - line problems, randomized algorithms, integer programming, semide?nite p- gramming, algorithmic geometry, polyhedral combinatorics, branch and bound algorithms, cutting plane algorithms, and various applications. The 13th FCT was held in Riga-Lielupe, August 22-24, 2001 with an - ditional day (August 25) for the satellite workshop WEA2001. The previous meetings were held in the following cities: - Poznan-K ́ ornik, Poland, 1977 - Wendish-Rietz, Germany, 1979 - Szeged, Hungary, 1981 - Borgholm, Sweden, 1983 - Cottbus, Germany, 1985 - Kazan, Russia, 1987 - Szeged, Hungary, 1989 - Gosen-Berlin, Germany, 1991 - Szeged, Hungary, 1993 - Dresden, Germany, 1995 - Krak ́ ow, Poland, 1997 - Iasi, Romania, 1999 Thisyearthenumberofsubmittedpaperswashigh.TheProgramCommittee decided to accept 28 submissions as regular papers and 15 submissions as short papers. Additionally, the Program Committee of WEA2001 accepted 8 papers.