English

Quasisymmetric sewing in rigged Teichmueller space

Mathematical Physics 2008-07-18 v2 Complex Variables math.MP

Abstract

One of the basic geometric objects in conformal field theory (CFT) is the the moduli space of Riemann surfaces whose nn boundaries are ''rigged'' with analytic parametrizations. The fundamental operation is the sewing of such surfaces using the parametrizations to identify points. An alternative model is the moduli space of nn-punctured Riemann surfaces together with local biholomorphic coordinates at the punctures. We refer to both of these moduli spaces as the "rigged Riemann moduli space". By generalizing to quasisymmetric boundary parametrizations, and defining rigged Teichmueller spaces in both the border and puncture pictures, we prove the following results: (1) The Teichmueller space of a genus-gg surface bordered by nn closed curves covers the rigged Riemann and rigged Teichmueller moduli spaces of surfaces of the same type, and induces complex manifold structures on them. (2) With this complex structure the sewing operation is holomorphic. (3) The border and puncture pictures of the rigged moduli and rigged Teichmueller spaces are biholomorphically equivalent. These results are necessary in rigorously defining CFT (in the sense of G. Segal), as well as for the construction of CFT from vertex operator algebras.

Keywords

Cite

@article{arxiv.math-ph/0507031,
  title  = {Quasisymmetric sewing in rigged Teichmueller space},
  author = {David Radnell and Eric Schippers},
  journal= {arXiv preprint arXiv:math-ph/0507031},
  year   = {2008}
}

Comments

46 pages, 1 figure. Submitted. Introductory sections rewritten

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