Compactifying String Topology

Details Compactifying String Topology Compactifying String Topology

2011-11-15

arxiv.org/abs/1111.3635v1

Mathematics

Geometric Topology

55 pages, 7 figures

Scientific paper

We study the string topology of a closed oriented Riemannian manifold M. We describe a compact moduli space of diagrams, and show how the cellular chain complex of this space gives algebraic operations on the singular chains of the free loop space LM of M. These operations are well-defined on the homology of a quotient of this moduli space, which has the homotopy type of a compactification of the moduli space of Riemann surfaces. In particular, our action of the 0-dimensional homology of the quotient space on the homology of the free loop space of M recovers the Cohen-Godin positive boundary TQFT.

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