cohomology of dg-categories, graded centers and spectral sequences

Plática dada por Frank Neumann (University of Leicester, Unidted Kingdom) en el evento Algebraic Geometry in 2017 el martes 28 noviembre del 2017 en Oaxaca, México.

Abstract:
Abstract: The Hochschild cohomology of a differential graded , or a differential graded category, admits a natural map to the graded center of its homology category: the characteristic homomorphism. We interpret it as an edge homomorphism in a spectral sequence. This gives a conceptual explanation of the failure of the characteristic homomorphism to be injective or surjective, in general. To illustrate this, we discuss coherent sheaves over algebraic curves, as well as examples related to free loop spaces.

Video de la plática
https://youtu.be/9W8JU2OV3_s

Foto de miniatura del video
https://photos.app.goo.gl/rSmQt89wW97Lf3kn1

Frank Neumann en:

University of Leicester
https://www2.le.ac.uk/departments/mathematics/extranet/staff-material/staff-profiles/fn8

Mathematics Genealogy Project
https://www.genealogy.math.ndsu.nodak.edu/id.php?id=27719

Google Scholar
https://scholar.google.com/citations?user=11lcP4oAAAAJ&hl=en

arXiv
https://arxiv.org/find/math/1/au:+Neumann_F/0/1/0/all/0/1

ResearchGate
https://www.researchgate.net/profile/Frank_Neumann9

Otras pláticas del evento Algebraic Geometry in Mexico 2017
https://www.youtube.com/playlist?list=PLrg-5oUhFeirKNj3qs2gQlk7nms2Kx0b7

Otras pláticas del evento Algebraic Geometry in Mexico 2016
https://www.youtube.com/playlist?list=PLrg-5oUhFeioieJgNVvON2WGwIh07bh8M

Otras pláticas del evento Algebraic Geometry in Mexico 2015
https://www.youtube.com/playlist?list=PLrg-5oUhFeipLL7JxLlnij0z1EKQ1dr6i

Videos Académicos de (pláticas grabadas)
https://www.youtube.com/playlist?list=PLrg-5oUhFeiqvXI_Bxb5iOH25gXprez6o

Videos Académicos publicados
https://www.youtube.com/playlist?list=PLrg-5oUhFeirZBmxs7kDn_KrKHUJradjz

Videos Académicos publicados en 2017
https://www.youtube.com/playlist?list=PLrg-5oUhFeiqonNhVJlcrrcxHUrUyU2VA

Album de fotos miniatura de los videos Académicos publicados en 2017
https://goo.gl/photos/7yKCos9N8T9SecGk9

Videos Académicos publicados en 2016
https://www.youtube.com/playlist?list=PLrg-5oUhFeirKKFi4xM3LtzuCbHlKlMJO

Album de fotos miniatura de los videos Académicos publicados en 2016
https://goo.gl/photos/Wk45yoGqPe5hKTw77

Videos Académicos publicados en 2015
https://www.youtube.com/playlist?list=PLrg-5oUhFeiosqyOgMN2yPybqXIrPAhbi

Videos Académicos publicados en 2014
https://www.youtube.com/playlist?list=PLrg-5oUhFeiomqff3PibNQMJJngwB-wL6

Videos Académicos publicados en 2013
https://www.youtube.com/playlist?list=PLrg-5oUhFeipDUZKuJZM0QJDP22Cogkot

Agradecemos el apoyo de

universo.math
http://universo.math.org.mx/
https://www.facebook.com/universo.math

Departamento de Matemáticas del CINVESTAV
http://www.math.cinvestav.mx/

de Ciencias de la UNAM
http://www.fciencias.unam.mx/
https://www.facebook.com/Facultad-de-Ciencias-214278861928417/?fref=ts