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Path integrals on manifolds by finite dimensional approximation

  • Christian Bär und Frank Pfäffle
Veröffentlicht/Copyright: 18. November 2008
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Journal für die reine und angewandte Mathematik
Aus der Zeitschrift Band 2008 Heft 625

Abstract

Let M be a compact Riemannian manifold without boundary and let H be a self-adjoint generalized Laplace operator acting on sections in a bundle over M. We give a path integral formula for the solution to the corresponding heat equation. This is based on approximating path space by finite dimensional spaces of geodesic polygons. We also show a uniform convergence result for the heat kernels. This yields a simple and natural proof for the Hess-Schrader-Uhlenbrock estimate and a path integral formula for the trace of the heat operator.

Received: 2007-03-16
Published Online: 2008-11-18
Published in Print: 2008-December

© Walter de Gruyter Berlin · New York 2008

Heruntergeladen am 17.9.2025 von https://www.degruyterbrill.com/document/doi/10.1515/CRELLE.2008.089/html
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