On the relation between relative rigid and support tilting

Yu Liu; Panyue Zhou

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arXiv · 2003.12788

On the relation between relative rigid and support tilting

Yu Liu·Panyue Zhou

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Abstract

Let B be an extriangulated category with enough projectives and enough injectives. Let C be a fully rigid subcategory of B which admits a twin cotorsion pair ((C,K),(K,D)). The quotient category B/K is abelian, we assume that it is hereditary and has finite length. In this article, we study the relation between support tilting subcategories of B/K and maximal relative rigid subcategories of B. More precisely, we show that the image of any cluster tilting subcategory of B is support tilting in B/K and any support tilting subcategory in B/K can be lifted to a unique relative maximal rigid subcategory in B. We also give a bijection between these two classes of subcategories if C is generated by an object.

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BibTeX RIS

Yu Liu, Panyue Zhou. 2020-03-28. On the relation between relative rigid and support tilting. https://arxiv.org/abs/2003.12788

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