کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
426822 686300 2011 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On properties not inherited by monoids from their Schützenberger groups
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نظریه محاسباتی و ریاضیات
پیش نمایش صفحه اول مقاله
On properties not inherited by monoids from their Schützenberger groups
چکیده انگلیسی

We give an example of a monoid with finitely many left and right ideals, all of whose Schützenberger groups are presentable by finite complete rewriting systems, and so each have finite derivation type, but such that the monoid itself does not have finite derivation type, and therefore does not admit a presentation by a finite complete rewriting system. The example also serves as a counterexample to several other natural questions regarding complete rewriting systems and finite derivation type. Specifically it allows us to construct two finitely generated monoids M and N with isometric Cayley graphs, where N has finite derivation type (respectively, admits a presentation by a finite complete rewriting system) but M does not. This contrasts with the case of finitely generated groups for which finite derivation type is known to be a quasi-isometry invariant. The same example is also used to show that neither of these two properties is preserved under finite Green index extensions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Information and Computation - Volume 209, Issue 7, July 2011, Pages 1120-1134