Abstract
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 L2(G). We describe an application for estimates of heat kernels of complex subelliptic operators on unimodular Lie groups.
Original language | English |
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Pages (from-to) | 77-90 |
Number of pages | 14 |
Journal | Colloquium Mathematicum |
Volume | 100 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2004 |
Externally published | Yes |