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arXiv 1111.0330math.CTmath.KTmath.RA
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非正合范畴中的Exact Sequences(对半模的应用)

Exact Sequences in Non-Exact Categories (An Application to Semimodules)

Jawad Abuhlail

摘要:

我们考虑一个概念的确切序列在任何-不一定确切-指向范畴相对于一个给定的(E;M)-因子分解结构。我们应用这一概念引入并研究了半环上半模的正合序列的一个新概念。几个同调结果证明了使用新的概念的准确性,包括一些限制版本的短五引理和蛇引理打开大门,引进和调查的同调对象在这样的范畴。我们的研究结果特别适用于各种交换幺半群扩展结果同调品种相对同调品种。

英文摘要:

We consider a notion of exact sequences in any -not necessarily exact- pointed category relative to a given (E;M)-factorization structure. We apply this notion to introduce and investigate a new notion of exact sequences of semimodules over semirings relative to the canonical image factorization. Several homological results are proved using the new notion of exactness including some restricted versions of the Short Five Lemma and the Snake Lemma opening the door for introducing and investigating homology objects in such categories. Our results apply in particular to the variety of commutative monoids extending results in homological varieties to relative homological varieties.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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