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Related papers: Nilpotence theorems via homological residue fields

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Let $A$ be a finite dimensional representation-finite algebra over an algebraically closed field. The aim of this work is to determine which vertices of $Q_A$ are suficient to be consider in order to compute the nilpotency index of the…

Representation Theory · Mathematics 2020-03-10 Claudia Chaio , Victoria Guazzelli , Pamela Suarez

In this paper, we characterize NIP henselian valued fields modulo the theory of their residue field, both in an algebraic and in a model-theoretic way. Assuming the conjecture that every infinite NIP field is either separably closed, real…

Logic · Mathematics 2024-03-14 Sylvy Anscombe , Franziska Jahnke

In group representations several inductions given by tensoring with appropriate bimodules may be reconstructed via homology of $G$-posets with $G$-equivariant coefficients. For this purpose, we need various local categories of a finite…

Representation Theory · Mathematics 2018-10-23 Fei Xu

Green's theorem states that the Hall algebra of the category of representations of a quiver over a finite field is a twisted bialgebra. Considering instead categories of orthogonal or symplectic quiver representations leads to a class of…

Representation Theory · Mathematics 2018-11-16 Matthew B. Young

We show that the moduli problem of deformations of nilpotent displays by quasi-isogenies is representable, without using $p$-divisible groups. The main ingredients are Artin's criterion and the theory of truncated displays. This gives in…

Algebraic Geometry · Mathematics 2024-04-17 Sebastian Bartling , Manuel Hoff

We investigate a new notion of regularity for tensor triangulated categories, called residual regularity. We show that residual regularity descends and ascends via finite separable extensions and we classify all finite groups whose derived…

Category Theory · Mathematics 2026-05-27 Emmy Van Rooy

We prove some results on the nilpotent orbit theorem for complex variation of Hodge structures.

Algebraic Geometry · Mathematics 2023-11-01 Ya Deng

In a previous paper we constructed rank and support variety theories for "quantum elementary abelian groups," that is, tensor products of copies of Taft algebras. In this paper we use both variety theories to classify the thick tensor…

Representation Theory · Mathematics 2015-01-29 Julia Pevtsova , Sarah Witherspoon

Let $G$ be a connected reductive group over an algebraically closed field $\Bbbk$. Under mild restrictions on the characteristic of $\Bbbk$, we show that any $G$-module with a good filtration also has a good filtration as a module for the…

Representation Theory · Mathematics 2021-06-09 Pramod N. Achar , William Hardesty

There is a well known link from the first topic in the title to the third one. In this paper we thread that link through the second topic. The central result is a criterion for the tensor nilpotence of morphisms of perfect complexes over…

Commutative Algebra · Mathematics 2018-11-27 Luchezar L. Avramov , Srikanth B. Iyengar , Amnon Neeman

We start the general structure theory of not necessarily semisimple finite tensor categories, generalizing the results in the semisimple case (i.e. for fusion categories), obtained recently in our joint work with D.Nikshych. In particular,…

Quantum Algebra · Mathematics 2007-05-23 Pavel Etingof , Viktor Ostrik

It is shown that the idempotent completion of the additive hull of the tensor product of the residue category of the category of paths of a locally finite quiver modulo an admissible ideal and a dualizing category is dualizing. Furthermore,…

Representation Theory · Mathematics 2016-10-06 Yang Han , Ningmei Zhang

This expository article gives a thorough and well-motivated account of the proof of the nilpotence theorem by Devinatz-Hopkins-Smith.

Algebraic Topology · Mathematics 2021-08-24 David Popović

We prove a $p$-nilpotency criterion for finite groups in terms of the element orders of its $p'$-reduced sections that extends a nilpotency criterion by T{\u{a}}rn{\u{a}}uceanu.

Algebraic Topology · Mathematics 2018-04-17 Antonio Díaz Ramos , Antonio Viruel

We establish a correspondence between recollements of abelian categories up to equivalence and certain TTF-triples. For a module category we show, moreover, a correspondence with idempotent ideals, recovering a theorem of Jans. Furthermore,…

Representation Theory · Mathematics 2013-04-10 Chrysostomos Psaroudakis , Jorge Vitoria

We give a survey of the ideas of descent and nilpotence. We focus on examples arising from chromatic homotopy theory and from group actions, as well as a few examples in algebra.

Algebraic Topology · Mathematics 2017-01-09 Akhil Mathew

We examine the concept of field in tensor-triangular geometry. We gather examples and discuss possible approaches, while highlighting open problems. As the construction of residue tt-fields remains elusive, we instead produce suitable…

Category Theory · Mathematics 2019-02-22 Paul Balmer , Henning Krause , Greg Stevenson

The purpose of this paper is to prove that we can construct all finite dimensional irreducible nilpotent modules of type 1 inductively by using Schnizer homomorphisms for quantum algebra at roots of unity of type A, B, C, D or G.

Quantum Algebra · Mathematics 2007-05-23 Yuuki Abe

We specify the conjecture about the structure of the Coulomb branch of N=2 supersymmetric quantum field theories in four dimensions.

Algebraic Geometry · Mathematics 2015-10-27 Denis Degtyarev

In a previous paper with Kashyap we generalized the theory of $W^*$-modules to the setting of modules over nonselfadjoint dual operator algebras, obtaining the class of weak*-rigged modules. The present paper and its contemporaneous…

Operator Algebras · Mathematics 2017-01-31 David P. Blecher