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arXiv 2007.11059math.CTmath.RA
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阿贝尔范畴中的CS-Rickart和对偶CS-Rickart对象

CS-Rickart and dual CS-Rickart objects in abelian categories

Septimiu Crivei, Simona Maria Radu

摘要:

我们在阿贝尔范畴中引入(对偶)相对CS-Rickart对象,作为(对偶)相对Rickart对象和扩展(提升)对象的一般推广。我们研究了(对偶)相对CS-Rickart对象的直接和数和(共)积,以及所有对象都是(对偶)自CS-Rickart的类。应用程序给出了Grothendieck范畴,特别是模和余模范畴。

英文摘要:

We introduce (dual) relative CS-Rickart objects in abelian categories, as common generalizations of (dual) relative Rickart objects and extending (lifting) objects. We study direct summands and (co)products of (dual) relative CS-Rickart objects as well as classes all of whose objects are (dual) self-CS-Rickart. Applications are given to Grothendieck categories and, in particular, to module and comodule categories.

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