کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4660859 | 1344389 | 2006 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Finite sheeted covering maps over 2-dimensional connected, compact Abelian groups
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موضوعات مرتبط
مهندسی و علوم پایه
ریاضیات
هندسه و توپولوژی
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چکیده انگلیسی
Let G be a 2-dimensional connected, compact Abelian group and s be a positive integer. We prove that a classification of s-sheeted covering maps over G is reduced to a classification of s-index torsionfree supergroups of the Pontrjagin dual . Using group theoretic results from earlier paper we demonstrate its consequences. We also prove that for a connected compact group Y:(1)Every finite-sheeted covering map from a connected space over Y is equivalent to a covering homomorphism from a compact, connected group.(2)If two finite-sheeted covering homomorphisms over Y are equivalent, then they are equivalent as topological homomorphisms.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Topology and its Applications - Volume 153, Issue 7, 1 January 2006, Pages 1033-1045
Journal: Topology and its Applications - Volume 153, Issue 7, 1 January 2006, Pages 1033-1045