کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4588771 1630562 2007 22 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Profinite completions of some groups acting on trees
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات اعداد جبر و تئوری
پیش نمایش صفحه اول مقاله
Profinite completions of some groups acting on trees
چکیده انگلیسی

We investigate the profinite completions of a certain family of groups acting on trees. It turns out that for some of the groups considered, the completions coincide with the closures of the groups in the full group of tree automorphisms. However, we introduce an infinite series of groups for which that is not so, and describe the kernels of natural homomorphisms of the profinite completions onto the aforementioned closures of respective groups.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Algebra - Volume 310, Issue 2, 15 April 2007, Pages 858-879