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Martin Sleziak
Martin Sleziak
11:52
new-tag A new tag fundamental-solution.
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Q: What is the fundamental solution for the backward heat equation?

AndrewAccording to the theorem of Malgrange and Ehrenpreis a fundamental solution exists for any PDE with constant coefficients. But I didn't manage to find in the literature an explicit formula for the backward heat equation $u_t+\Delta u=0$. So what is the formula or does the fundamental solution e...

reference-request heat-equation fundamental-solution

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