Stability and Approximations of Symmetric Diffusion Semigroups and Kernels
Let (Pt)t≥0and (Pt)t≥0be two diffusion semigroups on Rd(d≥2) associated with uniformly elliptic operatorsL=∇·(A∇) and L=∇·(A∇) with measurable coefficientsA=(aij) and A=(ãij), respectively. The corresponding diffusion kernels are denoted bypt(x,y) and pt(x,y). We derive a pointwise estimate on pt(x,...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
1998
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