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Related papers: An HKR theorem for factorization homology

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We study the homology of free loop spaces via techniques arising from the theory of topological coHochschild homology (coTHH). Topological coHochschild homology is a topological analogue of the classical theory of coHochschild homology for…

Algebraic Topology · Mathematics 2021-12-15 Anna Marie Bohmann , Teena Gerhardt , Brooke Shipley

Canonical BRST quantization of the topological particle defined by a Morse function h is described. Stochastic calculus, using Brownian paths which implement the WKB method in a new way providing rigorous tunnelling results even in curved…

High Energy Physics - Theory · Physics 2009-10-31 Alice Rogers

Given a connected manifold with corners of any codimension there is a very basic and computable homology theory called conormal homology defined in terms of faces and orientations of their conormal bundles, and whose cycles correspond…

K-Theory and Homology · Mathematics 2022-03-09 Paulo Carrillo Rouse , Jean-Marie Lescure , Mario Velasquez

In this paper we analyze the higher topological Hochschild homology of commutative Thom S-algebras. This includes the case of the classical cobordism spectra MO, MSO, MU, etc. We consider the homotopy orbits of the torus action on iterated…

Algebraic Topology · Mathematics 2014-02-26 Christian Schlichtkrull

We discuss which part of the rationalized algebraic K-theory of a group ring is detected via trace maps to Hochschild homology, cyclic homology, periodic cyclic or negative cyclic homology.

K-Theory and Homology · Mathematics 2007-05-23 Wolfgang Lueck , Holger Reich

For an $\E$-ring spectrum $R$ and a map $f:X\to Pic(R)$ of spaces, the Thom spectrum $\T f$ is a comodule over $R\otimes\Si X$. In this parper we study the topological coHochschild homology of $R\otimes\Si X$ with coefficient $\T f$. More…

Algebraic Topology · Mathematics 2026-01-19 Jiaxi Zha

We compute the equivariant K-theory with integer coefficients of an equivariantly formal isotropy action, subject to natural hypotheses which cover the three major classes of known examples. The proof proceeds by constructing a map of…

Algebraic Topology · Mathematics 2023-11-28 Jeffrey D. Carlson

We observe a new equivariant relationship between topological Hochschild homology and cohomology. We also calculate the topological Hochschild homology of the topological Hochschild cohomology of a finite prime field, which can be viewed as…

Algebraic Topology · Mathematics 2025-04-10 Po Hu , Igor Kriz , Petr Somberg , Foling Zou

We describe a structure on a commutative ring (pre)cyclotomic spectrum $R$ that gives rise to a (pre)cyclotomic structure on topological Hochschild homology ($THH$) relative to its underlying commutative ring spectrum. This lets us…

Algebraic Topology · Mathematics 2024-12-24 Andrew J. Blumberg , Michael A. Mandell , Allen Yuan

We prove a cohomological splitting result for Hamiltonian fibrations over enumeratively rationally connected symplectic manifolds As a key application, we prove that the cohomology of a smooth, projective family over a smooth (stably)…

Symplectic Geometry · Mathematics 2024-07-08 Shaoyun Bai , Daniel Pomerleano , Guangbo Xu

We give a modern presentation of the Dundas-Goodwillie-McCarthy theorem identifying relative K-theory and topological cyclic homology for nilpotent ring extensions.

Algebraic Topology · Mathematics 2018-07-19 Sam Raskin

We introduce the notion of "covering homology" of a commutative ring spectrum with respect to certain families of coverings of topological spaces. The construction of covering homology is extracted from Bokstedt, Hsiang and Madsen's…

Algebraic Topology · Mathematics 2008-02-08 Morten Brun , Gunnar Carlsson , Bjorn Ian Dundas

We undertake a systematic study of the Hochschild homology, i.e. (the geometric realization of) the cyclic nerve, of $(\infty,1)$-categories (and more generally of category-objects in an $\infty$-category), as a version of factorization…

Algebraic Topology · Mathematics 2025-02-25 David Ayala , Aaron Mazel-Gee , Nick Rozenblyum

We study the cup product on the Hochschild cohomology of the stack quotient [X/G] of a smooth quasi-projective variety X by a finite group G. More specifically, we construct a G-equivariant sheaf of graded algebras on X whose G-invariant…

Algebraic Geometry · Mathematics 2018-12-13 Cris Negron , Travis Schedler , Pieter Belmans , Pavel Etingof

A fundamental result in toric topology identifies the cohomology ring of the moment-angle complex $\mathcal{Z}_K$ associated to a simplicial complex $K$ with the Koszul homology of the Stanley--Reisner ring of $K$. By studying cohomology…

Algebraic Topology · Mathematics 2023-05-29 Steven Amelotte , Benjamin Briggs

We compute the stable homology of the braid group with coefficients in any Schur functor applied to the integral reduced Burau representation. This may be considered as a hyperelliptic analogue of the Mumford conjecture (Madsen--Weiss…

Number Theory · Mathematics 2024-02-09 Jonas Bergström , Adrian Diaconu , Dan Petersen , Craig Westerland

In this paper we prove that on a smooth algebraic variety the HKR-morphism twisted by the square root of the Todd genus gives an isomorphism between the sheaf of poly-vector fields and the sheaf of poly-differential operators, both…

K-Theory and Homology · Mathematics 2010-10-06 Damien Calaque , Michel Van den Bergh

In this article we prove that the $KH$-asembly map, as defined by Bartels and L{\"u}ck, can be described in terms of the algebraic $KK$-theory of Cortinas and Thom. The $KK$-theory description of the $KH$-assembly map is similar to that of…

K-Theory and Homology · Mathematics 2009-01-14 Paul D. Mitchener

Sophisticated Khovanov-Rozansky (KhR) description of knot invariants in the fundamental representation can be reformulated in terms of bicomplex with a simple physical meaning. Namely, the counterintuitive matrix factorization is…

High Energy Physics - Theory · Physics 2026-05-05 D. Galakhov , E. Lanina , A. Morozov

We construct a genuine $G$-equivariant extension of factorization homology for $G$ a finite group, assigning a genuine $G$-spectrum to a manifold with $G$-action. We show that $G$-factorization homology is compatible with…

Algebraic Topology · Mathematics 2019-10-17 Asaf Horev