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arXiv · 0801.3838

Pseudodifferential multi-product representation of the solution operator of a parabolic equation

Hiroshi Isozaki·Jérôme Le Rousseau
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Abstract

By using a time slicing procedure, we represent the solution operator of a second-order parabolic pseudodifferential equation on $\R^n$ as an infinite product of zero-order pseudodifferential operators. A similar representation formula is proven for parabolic differential equations on a compact Riemannian manifold. Each operator in the multi-product is given by a simple explicit Ansatz. The proof is based on an effective use of the Weyl calculus and the Fefferman-Phong inequality.

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Hiroshi Isozaki, Jérôme Le Rousseau. 2009-04-17. Pseudodifferential multi-product representation of the solution operator of a parabolic equation. https://doi.org/10.1080/03605300903017330

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