1,721,028 research outputs found

    Symmetrization in a nonlinear degenerate parabolic problem

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    Bounds for the solution of a nonlinear degenerate parabolic problem are given by means of the sollution of a "symmetrized" problem

    A priori bounds in Lp for solutions of elliptic equations in divergence form

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    We prove an a priori bound in Lp, p>1, for the solutions of the Dirichlet problem for second order linear elliptic partial differential equations in divergence form with discontinuous coefficients in unbounded domains

    Some remarks on the Dirichlet problem for an elliptic equation

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    The best constant for the inequality (3) is given; we deduce some results about the Dirichlet problem for an elliptic equation

    The Dirichlet problem for elliptic equations in weighted Sobolev spaces

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    In this paper we prove some existence and uniqueness results for the Dirichlet problem for elliptic equations with singular coefficients in weighted Sobolev spaces

    Second-order elliptic equations of Cordes type in unbounded open subsets in R^n.

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    In this paper we study the Dirichlet problem for linear second order elliptic partial differential equations of Cordes type in unbounded domains. We obtain some existence and uniqueness results

    Some remarks on a class of weight functions

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    summary:In this paper we obtain some results about a class of functions ρ:ΩR+\rho\,:\, \Omega\rightarrow R_+, where Ω\Omega is an open set of RnR^n, which are related to the distance function from a fixed subset SρΩS_\rho\subset\partial\Omega. We deduce some imbedding theorems in weighted Sobolev spaces, where the weight function is a power of a function ρ\rho

    Dirichlet problem for elliptic equations in weighted Sobolev spaces on unbounded domains

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    In this review article we give an overview on some known results recently obtained within the study of the Dirichlet problem for a class of second-order linear elliptic equations in weighted Sobolev spaces on unbounded domains

    Dirichlet problem for the Laplace operator in a rectangle and in a strip

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    Bounds for the solution of the Dirichlet problem for the Laplace operator in a rectangle and in a strip are given by means of the solution of a "symmetrized" problem

    A weighted W2,p-a priori bound for a class of elliptic operators

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    We prove a weighted W2,p-a priori bound, p > 1, for a class of uniformly elliptic second-order differential operators on unbounded domains. We deduce a uniqueness and existence result for the solution of the related Dirichlet problem
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