On Gaussian kernel estimates on groups
Tom 100 / 2004
Colloquium Mathematicum 100 (2004), 77-90
MSC: 22E30, 35B40.
DOI: 10.4064/cm100-1-7
Streszczenie
We give new and simple sufficient conditions for Gaussian upper bounds for a convolution semigroup on a unimodular locally compact group. These conditions involve certain semigroup estimates in $L^2(G)$. We describe an application for estimates of heat kernels of complex subelliptic operators on unimodular Lie groups.
