On component extensions locally compact abelian groups
Publish place: The Journal of Algebra and Related Topics، Vol: 4، Issue: 1
Publish Year: 1395
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JART-4-1_001
تاریخ نمایه سازی: 31 تیر 1403
Abstract:
Let \pounds be the category of locally compact abelian groups and A,C\in \pounds. In this paper, we define component extensions of A by C and show that the set of all component extensions of A by C forms a subgroup of Ext(C,A) whenever A is a connected group. We establish conditions under which the component extensions split and determine LCA groups which are component projective. We also gives a necessary condition for an LCA group to be component injective in \pounds.
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Authors
H. Sahleh
Department of Mathematics, University of Guilan
A. A. Alijani
Department of Mathematics, University of Guilan