English
Related papers

Related papers: Trace and Kunneth formulas for singularity categor…

200 papers

Traces in symmetric monoidal categories are well-known and have many applications; for instance, their functoriality directly implies the Lefschetz fixed point theorem. However, for some applications, such as generalizations of the…

Category Theory · Mathematics 2012-11-08 Kate Ponto , Michael Shulman

In this paper we establish a precise comparison between vanishing cycles and the singularity category of Landau-Ginzburg models over a complete discrete valuation ring. By using noncommutative motives, we first construct a motivic…

Algebraic Geometry · Mathematics 2020-04-17 A. Blanc , M. Robalo , B. Töen , G. Vezzosi

We study a 2-functor that assigns to a bimodule category over a finite k-linear tensor category a k-linear abelian category. This 2-functor can be regarded as a category-valued trace for 1-morphisms in the tricategory of finite tensor…

Category Theory · Mathematics 2016-01-20 Jurgen Fuchs , Gregor Schaumann , Christoph Schweigert

Let A be a dg category, F:A->A a dg functor inducing an equivalence of categories in degree-zero cohomology, and A/F the associated dg orbit category. For every A1-homotopy invariant (e.g. homotopy K-theory, K-theory with coefficients,…

K-Theory and Homology · Mathematics 2015-03-10 Goncalo Tabuada

Let $G$ be an infinite-dimensional real classical group containing the complete unitary group (or complete orthogonal group) as a subgroup. Then $G$ generates a category of double cosets (train) and any unitary representation of $G$ can be…

Representation Theory · Mathematics 2019-10-29 Yury A. Neretin

This paper deals with the Langlands' classification for discrete series of unitary quasi-split p-adic groups. We show that such a classification follows from Arthur's work on the simple trace formula which we can use now thanks to…

Group Theory · Mathematics 2007-05-23 Colette Moeglin

We prove several K\"unneth formulas in motivic homotopy categories and deduce a Verdier pairing in these categories following SGA5, which leads to the characteristic class of a constructible motive, an invariant closely related to the…

Algebraic Geometry · Mathematics 2021-01-20 Fangzhou Jin , Enlin Yang

We derive a formula for the regularized trace of operators with compact spectrum which act on the space of square integrable functions on the quotient of a semisimple Liegroup of real rank one by a convex-cocompact subgroup. The sum of…

Differential Geometry · Mathematics 2007-05-23 U. Bunke , M. Olbrich

In this paper we pursue the study of spectral categories initiated in [26]. More precisely, we construct the Universal matrix invariant of spectral categories, i.e. a functor U with values in an additive category Add, which inverts the…

Algebraic Topology · Mathematics 2009-04-15 Goncalo Tabuada

We prove a colimit formula for the K-theory spectra of reductive p-adic groups of rank one with regular coefficients in terms of the K-theory of certain compact open subgroups. Furthermore, in the complex case, we show, using the…

K-Theory and Homology · Mathematics 2024-07-23 Maximilian Tönies

A variant of the trace in a monoidal category is given in the setting of closed monoidal derivators, which is applicable to endomorphisms of fiberwise dualizable objects. Functoriality of this trace is established. As an application, an…

Category Theory · Mathematics 2019-06-10 Martin Gallauer

We prove the non-commutative analogue of Grothendieck's Standard Conjecture D for the dg-category of matrix factorizations of an isolated hypersurface singularity in characteristic 0. Along the way, we show the Euler pairing for such…

Algebraic Geometry · Mathematics 2020-03-05 Michael K. Brown , Mark E. Walker

We prove a Lefschetz theorem for the Tannakian group scheme of $\mathcal{D}$-modules, in arbitrary characteristic. In characteristic $0$, We prove a K\"unneth formula for the Tannakian group scheme of regular singular integrable…

Algebraic Geometry · Mathematics 2025-11-05 Xiaodong Yi

For a reductive group $G$, we introduce a notion of singular support for cocomplete dualizable DG-categories equipped with a strong $G$-action. This is done by considering the singular support of the sheaves of matrix coefficients arising…

Representation Theory · Mathematics 2025-07-08 Gurbir Dhillon , Joakim Færgeman

In this paper we discuss trace properties of $d^+$-summable $K$-cycles considered by A.Connes in [\rfr(Conn4)]. More precisely we give a proof of a trace theorem on the algebra $\A$ of a $K$--cycle stated in [\rfr(Conn4)], namely we show…

funct-an · Mathematics 2008-02-03 Fabio Cipriani , Daniele Guido , Sergio Scarlatti

We study an invariant, the secondary trace, attached to two commuting endomorphisms of a 2-dualizable object in a symmetric monoidal higher category. We establish a secondary trace formula which encodes the natural symmetries of this…

Algebraic Geometry · Mathematics 2013-06-04 David Ben-Zvi , David Nadler

Let g be a complex, simple Lie algebra and t a Cartan subalgebra of g. A new unitary, flat connection on t with values in any finite-dimensional g-module V and simple poles along the root hyperplanes was recently introduced by J. Millson…

Quantum Algebra · Mathematics 2009-09-25 Valerio Toledano-Laredo

We define a traced pseudomonoid as a pseudomonoid in a monoidal bicategory equipped with extra structure, giving a new characterisation of Cauchy complete traced monoidal categories as algebraic structures in $\mathbf{Prof}$, the monoidal…

Category Theory · Mathematics 2024-03-12 Nick Hu , Jamie Vicary

We introduce the notion of a $c$-category, which is a kind of category whose behaviour is controlled by connective ring spectra. More precisely, any $c$-category admits a finite step resolution by categories of compact modules over…

K-Theory and Homology · Mathematics 2025-09-19 Ishan Levy , Vladimir Sosnilo

Traced monoidal categories are used to model processes that can feed their outputs back to their own inputs, abstracting iteration. The category of finite dimensional Hilbert spaces with the direct sum tensor is not traced. But…

Category Theory · Mathematics 2026-02-18 Aaron David Fairbanks , Peter Selinger