Results 11 to 20 of about 198 (75)

Derived equivalences of upper-triangular ring spectra via reflection functors

, 2023
We use the generalised Bernstein-Gelfand-Ponomarev reflection functors constructed in joint work with Dyckerhoff and Walde to extend a theorem of Ladkani concerning derived equivalences between upper-triangular matrix rings from ordinary rings to ring ...
Jasso, Gustavo
core   +1 more source

a review of Which homotopy algebras come from transfer? by Markl Martin; Rogers Christopher L. [PDF]

, 2022
articl
NISHIMURA Hirokazu
core  

Graded matrix factorizations of size two and reduction [PDF]

, 2021
We associate a complete intersection singularity to a graded matrix factorization of size two of a polynomial in three variables. We show that we get an inverse to the reduction of singularities considered by C.T.C.Wall.
Ebeling, Wolfgang, Takahashi, Atsushi
core   +3 more sources

Permutation modules and cohomological singularity [PDF]

, 2022
We define a new invariant of finitely generated representations of a finite group, with coefficients in a commutative noetherian ring. This invariant uses group cohomology and takes values in the singularity category of the coefficient ring.
Balmer, P., Gallauer, M.
core   +2 more sources

Stringy K\"ahler Moduli for the Pfaffian-Grassmannian Correspondence [PDF]

, 2021
The Pfaffian-Grassmannian correspondence relates certain pairs of derived equivalent non-birational Calabi-Yau 3-folds. Given such a pair, I construct a set of derived equivalences corresponding to mutations of an exceptional collection on the relevant ...
Donovan, Will
core   +3 more sources

Skew graded $(A_\infty)$ hypersurface singularities

, 2022
For a skew version of a graded $(A_\infty)$ hypersurface singularity $A$, we study the stable category of graded maximal Cohen-Macaulay modules over $A$.
Ueyama, Kenta
core   +1 more source

A smooth compactification of spaces of stability conditions: the case of the $A_{n}$ -quiver

Forum of Mathematics, Sigma
We propose a notion of multi-scale stability conditions with the goal of providing a smooth compactification of the quotient of the space of projectivized Bridgeland stability conditions by the group of autoequivalence.
Anna Barbieri, Martin Möller, Jeonghoon So   +2 more
doaj   +1 more source

Universal support for triangulated categories

, 2023
We revisit a result of Gratz and Stevenson on the universal space that carries supports for objects of a triangulated category, in the absence of a tensor product.Comment: 2 ...
Balmer, Paul, Ocal, Pablo S.
core  

Noncommutative tensor triangulated categories and coherent frames [PDF]

, 2022
We develop a point-free approach for constructing the Nakano-Vashaw-Yakimov-Balmer spectrum of a noncommutative tensor triangulated category under some mild assumptions.
Mallick, Vivek Mohan, Ray, Samarpita
core   +3 more sources

The higher mapping cone axiom

Open Mathematics
The aim of the article is to better understand the higher octahedral axiom of nn-angulated categories. We discuss several possible additional axioms for pre-nn-angulated categories and prove that they are all equivalent to the higher octahedral axiom.
Cheng Xu, Yang Xiaoyan
doaj   +1 more source