A class of quasi-linear parabolic and elliptic equations with nonlocal Robin boundary conditions |
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Authors: | Alejandro Velez Santiago |
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Affiliation: | University of Puerto Rico, Faculty of Natural Sciences, Department of Mathematics (Rio Piedras Campus), PO Box 70377, San Juan, PR 00936-8377, USA |
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Abstract: | Let p∈(1,N), Ω⊂RN a bounded W1,p-extension domain and let μ be an upper d-Ahlfors measure on ∂Ω with d∈(N−p,N). We show in the first part that for every p∈[2N/(N+2),N)∩(1,N), a realization of the p-Laplace operator with (nonlinear) generalized nonlocal Robin boundary conditions generates a (nonlinear) strongly continuous submarkovian semigroup on L2(Ω), and hence, the associated first order Cauchy problem is well posed on Lq(Ω) for every q∈[1,∞). In the second part we investigate existence, uniqueness and regularity of weak solutions to the associated quasi-linear elliptic equation. More precisely, global a priori estimates of weak solutions are obtained. |
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Keywords: | Nonlocal Robin boundary conditions Nonlinear submarkovian semigroups Quasi-linear elliptic equations Weak solutions A priori estimates |
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