期刊
JOURNAL OF DIFFERENTIAL EQUATIONS
卷 341, 期 -, 页码 538-588出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jde.2022.09.024
关键词
Kolmogorov equation; Weak regularity theory; Weak Poincar? inequality; Harnack inequality; H?lder regularity; Ultraparabolic
类别
The aim of this work is to prove a Harnack inequality and Holder continuity for weak solutions to the Kolmogorov equation with measurable coefficients, integrable lower order terms, and nonzero source term. A functional space W is introduced for the study of weak solutions, which enables the proof of a weak Poincare inequality. The analysis is based on a weak Harnack inequality, a weak Poincare inequality combined with an L2 - L infinity estimate, and a classical covering argument.
The aim of this work is to prove a Harnack inequality and the Holder continuity for weak solutions to the Kolmogorov equation L u = f with measurable coefficients, integrable lower order terms and nonzero source term. We introduce a functional space W, suitable for the study of weak solutions to L u = f, that allows us to prove a weak Poincare inequality. Our analysis is based on a weak Harnack inequality, a weak Poincare inequality combined with a L2 - L infinity estimate and a classical covering argument (Ink-Spots (c) 2022 Elsevier Inc. All rights reserved.
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