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A deformation formula for the heat kernel
Published 7 Feb 2013 in math-ph and math.MP | (1302.1810v1)
Abstract: Let us consider a time-dependent differential operator quadratic with respect to the phase variables. Let us consider a multiplication operator defined with the help of a "small" matrix-valued function. Under suitable conditions, we give an "explicit" expression of "the" heat kernel associated to the sum of the two previous operators for small time.
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