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The heat equation with singular coefficients

I. Operators of the form\( - \frac{{d^2 }}{{dx^2 }} + \frac{\kappa }{{x^2 }}\) in dimension 1

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Abstract

The small time asymptotics of the kernel ofe tH is defined and derived for\(H = \frac{{d^2 }}{{dx^2 }} + \frac{\kappa }{{x^2 }}\) on ℝ1. Lemmas on singular asymptotics in the sense of distributions are formulated and used. The results are applied to derive an index formula on ℝ1.

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Communicated by A. Jaffe

Work partly supported by the National Science Foundation Grant No. 80-08894 MCS

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Callias, C.J. The heat equation with singular coefficients. Commun.Math. Phys. 88, 357–385 (1983). https://doi.org/10.1007/BF01213214

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  • DOI: https://doi.org/10.1007/BF01213214

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