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Analog of heat equation for gaussian measure of a ball in Hilberrt space
Authors:Gyula Pap
Affiliation:1. Department of Mathematics, University of Debrecen, Pf. 12, H-4010, Debrecen, Hungary
Abstract:If mgr a,T is a Gaussian measure on a Hilbert space with meana and covariance operatorT, andr is a fixed positive number, then the functiong(a,T)=mgr a,T {VerbarxVerbarr} satisfies the equation

$$\frac{\partial }{{\partial T}}g(a,T) = \frac{1}{2}\frac{{\partial ^2 }}{{\partial a^2 }}g(a,T)$$
Keywords:Gaussian measure  Hilbert space
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