Mathematics – Analysis of PDEs
Scientific paper
2008-01-24
Comm. Partial Differential Equations 34, 7 (2009) 625 - 655
Mathematics
Analysis of PDEs
Comm. Partial Differential Equations to appear (2009) 28 pages
Scientific paper
10.1080/03605300903017330
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.
Isozaki Hiroshi
Rousseau Jérôme Le
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