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arXiv · 2001.07528

Kernel-Cokernel Sequence for Composition and its Applications

Rui Xiong
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Abstract

If this article, an elementary kernel-cokernel exact sequence is introduced for $A\stackrel{f}\to B\stackrel{g}\to C$. Some relative sequences and applications are dicussed. This result can simplify some proofs---the indices of Frodholm operators, Harada and Sai theorem, and the derived couples of exact couples.

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Rui Xiong. 2020-02-16. Kernel-Cokernel Sequence for Composition and its Applications. https://arxiv.org/abs/2001.07528

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