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PODC
2003
ACM
14 years 24 days ago
A lattice-theoretic characterization of safety and liveness
The distinction between safety and liveness properties is due to Lamport who gave the following informal characterization. Safety properties assert that nothing bad ever happens w...
Panagiotis Manolios, Richard J. Trefler
ENTCS
2006
117views more  ENTCS 2006»
13 years 7 months ago
Monadic Second-Order Logic and Transitive Closure Logics over Trees
Model theoretic syntax is concerned with studying the descriptive complexity of grammar formalisms for natural languages by defining their derivation trees in suitable logical for...
Hans-Jörg Tiede, Stephan Kepser
DLT
2006
13 years 9 months ago
Polynomials, Fragments of Temporal Logic and the Variety DA over Traces
Abstract. We show that some language theoretic and logical characterizations of recognizable word languages whose syntactic monoid is in the variety DA also hold over traces. To th...
Manfred Kufleitner
CORR
2007
Springer
79views Education» more  CORR 2007»
13 years 7 months ago
Logic Meets Algebra: the Case of Regular Languages
The study of finite automata and regular languages is a privileged meeting point of algebra and logic. Since the work of Büchi, regular languages have been classified according ...
Pascal Tesson, Denis Thérien
SIGMOD
2004
ACM
156views Database» more  SIGMOD 2004»
14 years 7 months ago
Tree Logical Classes for Efficient Evaluation of XQuery
XML is widely praised for its flexibility in allowing repeated and missing sub-elements. However, this flexibility makes it challenging to develop a bulk algebra, which typically ...
Stelios Paparizos, Yuqing Wu, Laks V. S. Lakshmana...