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conference paper

Modular functors, cohomological field theories, and topological recursion

Andersen, Jorgen Ellegaard
•
Borot, Gaetan
•
Orantin, Nicolas  
January 1, 2018
Topological Recursion And Its Influence In Analysis, Geometry, And Topology
AMS von Neumann Symposium on Topological Recursion and its Influence in Analysis, Geometry, and Topology

Given a topological modular functor V in the sense of Walker, we construct vector bundles Z (lambda) over bar, over (M) over bar (g,n) whose Chern characters define semi-simple cohomological field theories. This construction depends on a determination of the logarithm of the eigenvalues of the Dehn twist and central element actions. We show that the intersection indices of the Chern character with the 1P-classes in (M) over bar (g,n) is computed by the topological recursion of Eynard and Orantin, for a local spectral curve that we describe. In particular, we show how the Verlinde formula for the ranks D (lambda) over bar= rank nu(lambda) over bar is recovered from the topological recursion. We analyze the consequences of our result on two examples: modular functors associated to a finite group G (for which D (lambda) over bar enumerates certain G-principle bundles over a genus g surface with n boundary conditions specified by and the modular functor obtained from Wess-Zumino-Witten conformal field theory associated to a simple, simply connected Lie group G (for which Z (lambda) over bar is the Verlinde bundle).

  • Details
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Type
conference paper
DOI
10.1090/pspum/100/01772
Web of Science ID

WOS:000456359400002

Author(s)
Andersen, Jorgen Ellegaard
Borot, Gaetan
Orantin, Nicolas  
Date Issued

2018-01-01

Publisher

AMER MATHEMATICAL SOC

Publisher place

Providence

Published in
Topological Recursion And Its Influence In Analysis, Geometry, And Topology
ISBN of the book

978-1-4704-3541-7

Series title/Series vol.

Proceedings of Symposia in Pure Mathematics

Volume

100

Start page

1

End page

58

Subjects

Mathematics

•

vertex operator-algebras

•

hurwitz numbers

•

vector-bundles

•

loop equations

•

invariants

•

symmetry

•

curves

•

quantization

•

3-manifolds

•

hitchins

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
CSFT  
Event nameEvent placeEvent date
AMS von Neumann Symposium on Topological Recursion and its Influence in Analysis, Geometry, and Topology

Charlotte, NC

Jul 04-08, 2016

Available on Infoscience
June 18, 2019
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/157292
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