English

Cluster tilting modules and noncommutative projective schemes

Rings and Algebras 2017-07-05 v2 Representation Theory

Abstract

In this paper, we study the relationship between equivalences of noncommutative projective schemes and cluster tilting modules. In particular, we prove the following result. Let AA be an AS-Gorenstein algebra of dimension d2d\geq 2 and tailsA{\mathsf{tails}\,} A the noncommutative projective scheme associated to AA. If gldim(tailsA)<\operatorname{gldim}({\mathsf{tails}\,} A)< \infty and AA has a (d1)(d-1)-cluster tilting module XX satisfying that its graded endomorphism algebra is N\mathbb N-graded, then the graded endomorphism algebra BB of a basic (d1)(d-1)-cluster tilting submodule of XX is a two-sided noetherian N\mathbb N-graded AS-regular algebra over B0B_0 of global dimension dd such that tailsB{\mathsf{tails}\,} B is equivalent to tailsA{\mathsf{tails}\,} A.

Keywords

Cite

@article{arxiv.1604.02256,
  title  = {Cluster tilting modules and noncommutative projective schemes},
  author = {Kenta Ueyama},
  journal= {arXiv preprint arXiv:1604.02256},
  year   = {2017}
}

Comments

16 pages

R2 v1 2026-06-22T13:27:57.731Z