Decidability of Termination for Semi-constructor TRSs, Left-Linear Shallow TRSs and Related Systems
Author(s) -
Yi Wang,
Masahiko Sakai
Publication year - 2006
Publication title -
lecture notes in computer science
Language(s) - English
Resource type - Book series
SCImago Journal Rank - 0.249
H-Index - 400
eISSN - 1611-3349
pISSN - 0302-9743
ISBN - 3-540-36834-5
DOI - 10.1007/11805618_26
Subject(s) - decidability , computer science , rewriting , dependency graph , dependency (uml) , term (time) , theoretical computer science , graph , programming language , physics , software engineering , quantum mechanics
We consider several classes of term rewriting systems and prove that termination is decidable for these classes. By showing the cycling property of infinite dependency chains, we prove that termination is decidable for semi-constructor case, which is a superclass of right-ground TRSs. By analyzing argument propagation cycles in the dependency graph, we show that termination is also decidable for left-linear shallow TRSs. Moreover we extend these by combining these two techniques.
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