@article{oai:nagoya.repo.nii.ac.jp:00007546, author = {Sakai, Masahiko and Wang, Yi}, journal = {Proceedings of 7th International Workshop on Reduction Strategies in Rewriting and Programming (WRS2007), Paris}, month = {Jun}, note = {Length-two string rewriting systems are length preserving string rewriting systems that consist of length-two rules. This paper shows that confluence, termination, left-most termination and right-most termination are undecidable properties for length-two string rewriting systems. This results mean that these properties are undecidable for the class of linear term rewriting systems in which depth-two variables are allowed in both-hand sides of rules.}, pages = {43--57}, title = {Undecidable Properties on Length-Two String Rewriting Systems}, year = {2007} }