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相关论文: Derived equivalence classification of symmetric al…

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We give a characterization of the sets of objects of the derived category of a block of a finite group algebra (or other symmetric algebra) that occur as the set of images of simple modules under an equivalence of derived categories. We…

表示论 · 数学 2007-05-23 Jeremy Rickard

We show that diagrammatic sets, a topologically sound alternative to polygraphs and strict $\omega$-categories, admit an internal notion of equivalence in the sense of coinductive weak invertibility. We prove that equivalences have the…

范畴论 · 数学 2025-12-23 Clémence Chanavat , Amar Hadzihasanovic

Since 2005 a new powerful invariant of an algebra emerged using earlier work of Horv\'ath, H\'ethelyi, K\"ulshammer and Murray. The authors studied Morita invariance of a sequence of ideals of the centre of a finite dimensional algebra over…

表示论 · 数学 2010-11-01 Alexander Zimmermann

We show that the reduced Drinfeld double of the Ringel-Hall algebra of a hereditary category is invariant under derived equivalences. By associating an explicit isomorphism to a given derived equivalence, we also extend the results of…

量子代数 · 数学 2009-12-20 Tim Cramer

We consider a natural generalisation of symmetric Nakayama algebras, namely, symmetric special biserial algebras with at most one non-uniserial indecomposable projective module. We describe the basic algebras explicitly by quiver and…

表示论 · 数学 2013-10-14 Nicole Snashall , Rachel Taillefer

We study the equivalences induced by some special silting objects in the derived category over dg-algebra whose positive cohomologies are all zero.

表示论 · 数学 2023-02-14 Simion Breaz , George Ciprian Modoi

We develop the basic theory of derived quasi-coherent ideals for stacks relative to a given derived algebraic context. We compare different notions of adic completeness with respect to derived ideals, define and compare formal spectra and…

代数几何 · 数学 2025-11-26 Zachary Gardner , Jeroen Hekking

Leibniz algebras are non-antisymmetric generalizations of Lie algebras that have attracted substantial interest due to their close relation with the latter class. A Leibniz algebra $A$ is called perfect if it coincides with its derived…

环与代数 · 数学 2025-09-09 Nikolaos Panagiotis Souris

The aim of this work is to study comparability of nonlocal Dirichlet forms. We provide sufficient conditions on the kernel for local and global comparability. As an application we prove a-priori estimates in H\"{o}lder spaces for solutions…

偏微分方程分析 · 数学 2011-10-03 Bartłomiej Dyda , Moritz Kassmann

In this paper we study the derived equivalences between surface algebras, introduced by David-Roesler and Schiffler. Each surface algebra arises from a cut of an ideal triangulation of an unpunctured marked Riemann surface with boundary. A…

表示论 · 数学 2016-03-28 Claire Amiot , Yvonne Grimeland

We study twisted derived equivalences for schemes in the setting of spectral algebraic geometry. To this end, we introduce the notion of a twisted equivalence and show that a twisted equivalence for perfect spectral algebraic stacks…

代数几何 · 数学 2021-09-08 Chang-Yeon Chough

We generalize the notion of semi-normalized classes of systems of differential equations, study properties of such classes and extend the algebraic method of group classification to them. In particular, we prove the important theorems on…

数学物理 · 物理学 2024-09-02 Celestin Kurujyibwami , Dmytro R. Popovych , Roman O. Popovych

We carry out the complete group classification of the class of (1+1)-dimensional linear Schr\"odinger equations with complex-valued potentials. After introducing the notion of uniformly semi-normalized classes of differential equations, we…

数学物理 · 物理学 2018-03-07 Célestin Kurujyibwami , Peter Basarab-Horwath , Roman O. Popovych

In this paper we introduce a new approach for organizing algebras of global dimension at most 2. We introduce the notion of cluster equivalence for these algebras, based on whether their generalized cluster categories are equivalent. We are…

表示论 · 数学 2012-03-08 Claire Amiot , Steffen Oppermann

We show that the construction of mirror-reflective algebras inherits derived equivalences of gendo-symmetric algebras. More precisely, suppose A and B are gendo-symmetric algebras with both Ae and Bf faithful projective-injective left…

表示论 · 数学 2023-09-26 Hongxing Chen , Changchang Xi

We introduce the notion of pre-weight structure on a triangulated category and study the corresponding pseudo-identities. We propose the notion of canonical derived equivalence between algebras that are not necessarily flat, which is…

表示论 · 数学 2025-11-20 Xiao-Wu Chen

For a symmetric algebra A over a field K of characteristic p > 0 K{\"u}lshammer constructed a descending sequence of ideals of the centre of A. If K is perfect this sequence was shown to be an invariant under derived equivalence and for…

表示论 · 数学 2017-06-01 Alexander Zimmermann

In this paper we study derived equivalences between triangular matrix algebras using certain classical recollements. We show that special properties of these recollements actually characterize triangular matrix algebras, and describe…

表示论 · 数学 2015-07-30 Liping Li

The algebraic method for computing the complete point symmetry group of a system of differential equations is extended to finding the complete equivalence group of a class of such systems. The extended method uses the knowledge of the…

数学物理 · 物理学 2015-06-16 Alexander Bihlo , Elsa Dos Santos Cardoso-Bihlo , Roman O. Popovych

The aim of this short survey is to trace back the ingredients going into the derived equivalence classification of Brauer graph algebras and into the proof of the fact that these algebras are closed under derived equivalence.

表示论 · 数学 2024-05-10 Alexandra Zvonareva