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arXiv · 1201.1822

Almost complete cluster tilting objects in generalized higher cluster categories

Lingyan Guo
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Abstract

We study higher cluster tilting objects in generalized higher cluster categories arising from dg algebras of higher Calabi-Yau dimension. Taking advantage of silting mutations of Aihara-Iyama, we obtain a class of $m$-cluster tilting objects in generalized $m$-cluster categories. For generalized $m$-cluster categories arising from strongly ($m+2$)-Calabi-Yau dg algebras, by using truncations of minimal cofibrant resolutions of simple modules, we prove that each almost complete $m$-cluster tilting $P$-object has exactly $m+1$ complements with periodicity property. This leads us to the conjecture that each liftable almost complete $m$-cluster tilting object has exactly $m+1$ complements in generalized $m$-cluster categories arising from $m$-rigid good completed deformed preprojective dg algebras.

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Lingyan Guo. 2012-01-09. Almost complete cluster tilting objects in generalized higher cluster categories. https://arxiv.org/abs/1201.1822

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