Pseudodifferential Multi-product Representation of the Solution Operator of a Parabolic Equation

نویسندگان

  • HIROSHI ISOZAKI
  • LE ROUSSEAU
چکیده

By using a time slicing procedure, we represent the solution operator of a second-order parabolic pseudodifferential equation on Rn 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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تاریخ انتشار 2009