The dirichlet problem for sub-elliptic second order equations |
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Authors: | Alberto Parmeggiani Chao-Jiang Xu |
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Institution: | (1) Present address: Department of Mathematics, University of Bologna, P.za di Porta S. Donate, 40127 Bologna, Italy;(2) Present address: Institute of Mathematics, Wuhan University, 430072 Wuhan, China |
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Abstract: | The C-regularity up to the boundary of solutions to the Dirichlet problem:
is proved, using a comparison principle of L with a Hörmander's type operator X
j
*
Xj, where is a smooth bounded open subset of Rn, and
is a second-order degenerate elliptic operator with smooth coefficients, satisfying the so-called Fefferman-Phong's condition. |
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Keywords: | |
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