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Bibliographic Details
Main Authors: Hartenstein, Jana, Stegemeyer, Maximilian
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2510.05997
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Table of Contents:
  • The string topology coproduct on the homology of the free loop space of a closed manifold induces a string cobracket on $S^1$-equivariant homology. We give a complete computation of the string topology coproduct for surfaces of higher genus by describing an algorithm which computes the coproduct of a cyclic word in terms of generators of the fundamental group of the surface. We further show that the string cobracket is the negative of the Turaev cobracket.