[PDF][PDF] Noncommutative Geometry

A Connes - 1994 - repo-archives.ihes.fr
Our geometric concepts evolved first through the discovery of Non-Euclidean geometry. The
discovery of quantum mechanics in the form of the noncommuting coordinates on the phase …

Spherical adjunctions of stable -categories and the relative S-construction

T Dyckerhoff, M Kapranov, V Schechtman… - Mathematische …, 2024 - Springer
We develop the theory of semi-orthogonal decompositions and spherical functors in the
framework of stable∞-categories. We study the relative Waldhausen S-construction S∙(F) of …

Frobenius and commutative pseudomonoids in the bicategory of spans

I Contreras, RA Mehta, WH Stern - Journal of Geometry and Physics, 2025 - Elsevier
In previous work by the first two authors, Frobenius and commutative algebra objects in the
category of spans of sets were characterized in terms of simplicial sets satisfying certain …

The symplectic geometry of higher Auslander algebras: Symmetric products of disks

T Dyckerhoff, G Jasso, Y Lekili - Forum of Mathematics, Sigma, 2021 - cambridge.org
The symplectic geometry of higher Auslander algebras: Symmetric products of disks Page 1
Forum of Mathematics, Sigma (2021), Vol. 9:e10 1–49 doi:10.1017/fms.2021.2 RESEARCH …

[HTML][HTML] Simplicial structures in higher Auslander–Reiten theory

T Dyckerhoff, G Jasso, T Walde - Advances in Mathematics, 2019 - Elsevier
We develop a novel combinatorial perspective on the higher Auslander algebras of type A, a
family of algebras arising in the context of Iyama's higher Auslander–Reiten theory. This …

Crossed simplicial groups and structured surfaces

T Dyckerhoff, M Kapranov - Stacks and categories in geometry …, 2015 - books.google.com
We propose a generalization of the concept of a ribbon graph suitable to provide
combinatorial models for marked surfaces equipped with a G-structure. Our main insight is …

Twisted homology of quantum SL (2)

T Hadfield, U Krähmer - arXiv preprint math/0405249, 2004 - arxiv.org
We calculate the twisted Hochschild and cyclic homology (in the sense of Kustermans,
Murphy and Tuset) of the coordinate algebra of the quantum SL (2) group relative to twisting …

Cyclic cohomology of étale groupoids; the general case

C Marius - arXiv preprint funct-an/9712001, 1997 - arxiv.org
We give a general method for computing the cyclic cohomology of crossed products by etale
groupoids, extending the Feigin-Tsygan-Nistor spectral sequences. In particular we extend …

Orbifold cohomology as periodic cyclic homology

V Baranovsky - International Journal of Mathematics, 2003 - World Scientific
It is known from the work of Feigin–Tsygan, Weibel and Keller that the cohomology groups of
a smooth complex variety X can be recovered from (roughly speaking) its derived category …

Batalin–Vilkovisky structures on Ext and Tor

N Kowalzig, U Krähmer - Journal für die reine und angewandte …, 2014 - degruyter.com
This article studies the algebraic structure of homology theories defined by a left Hopf
algebroid U over a possibly noncommutative base algebra A, such as for example …