String topology coproduct: geometric and algebraic aspects of chain level constructions
Plática dada por Manuel Rivera (Miami-Cinvestav) en el evento Algebraic Geometry in Mexico 2016 el miércoles 1 de noviembre del 2016.
Abstract:
The string topology coproduct is an intersection type operation, originally described by Goresky-Hingston and Sullivan, which considers transversal self intersections on chains of loops in a smooth manifold and splits loops at these intersection points. The geometric chain level construction of string topology operations involves deforming chains to achieve certain transversality conditions and these deformations introduce higher homotopy terms for algebraic compatibilities and properties. The chain level theory for the coproduct is much more subtle and mysterious than for other string topology operations. I will describe joint work with Dingu Yang (IAS) in which we propose a framework and tools for constructing explicitly these operations. I will also present some new results in a parallel project with Zhengfang Wang (IMJ-PRG) in which we describe a single BV-algebra that combines the algebraic analogues of the coproduct and the Chas-Sullivan loop product in Hochschild complexes of Frobenius algebras.
Video de la plática
https://youtu.be/sz7KoN-jnIU
Foto de miniatura del video
https://goo.gl/photos/Yg4CjHbrXHGEAbZS7
Página de Manuel Rivera
https://sites.google.com/site/manuelor/
Página de Manuel Rivera en University of Miami
http://www.math.miami.edu/news/stories/2016newraps/rivera.htm
Página de Manuel Rivera en Genealogy Project
https://www.genealogy.math.ndsu.nodak.edu/id.php?id=193802
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
Pláticas de matemáticas en Ciencias TV
https://www.youtube.com/playlist?list=PLiD-IJzweXR8iyKKoKUGpAzF8rLWIu4A4
Página de facebook del Ciencias TV
https://www.facebook.com/Ciencias-TV-170487220017476
Videos Académicos publicados por Ciencias TV
https://www.youtube.com/playlist?list=PLiD-IJzweXR9CMW8piN4Pf1HjgSiGjLyi
Album de fotos de miniatura y carteles de los videos Académicos publicados por Ciencias TV
https://goo.gl/photos/EXEAiLUiLjKrHTeX9
Agradecemos el apoyo de
Facultad de Ciencias de la UNAM
http://www.fciencias.unam.mx/
https://www.facebook.com/Facultad-de-Ciencias-214278861928417/?fref=ts
universo.math
http://universo.math.org.mx/
https://www.facebook.com/universo.math
Departamento de Matemáticas del CINVESTAV
http://www.math.cinvestav.mx/