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On a possible generalization of heat kernel semigroups on Lie groups
Let $G$ be a compact matrix Lie group with Haar measure $\mu$. Then the heat kernel $\rho: G\times (0,\infty) \rightarrow \mathbb{R}$ satisfies
(1) $\rho(g_1g_2,t)=\rho(g_2g_1,t)$ for all positive $t$,...
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