42 research outputs found

    Renormalized solutions of elliptic equations with general measure data

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    We study existence and (in some case) uniqueness for elliptic equations with measure data

    Nonexistence of solutions for some nonlinear elliptic equations involving measures

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    Let us recall the following result due to H. Brezis (see [12]). Theorem 1.1 Let Ω be a bounded open subset of RN, N> 2, with 0 ∈ Ω, let f be a function in L1(Ω), and let {fn} be a sequence of L∞(Ω) functions such tha

    Stability of renormalized solutions of elliptic equations with measure data

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    Orlicz capacities and applications to some existence questions for elliptic PDES having measure data

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    We study the sequence u(n), which is solution of -div(a(x, del u(n))) + Phi" (\u(n)\) u(n) = f(n) + g(n) in Omega an open bounded set of R-N and u(n) = 0 on partial derivativeOmega, when f(n) tends to a measure concentrated on a set of null Orlicz-capacity. We consider the relation between this capacity and the N-function Phi, and prove a non-existence result

    Nonlinear reinforcement problems with right-hand side in L1L^1

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    We study the asymptotic behaviour, of the entropy solution to a class of nonlinear ``reinforcement problems" and we find the "limit problem"

    Definition and existence of renormalized solutions of elliptic equations with general measure data

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    We introduce a new definition of solution for the nonlinear monotone elliptic problem -div(a(cursive Greek chi, 07u)) = \u3bc in \u3a9, u = 0 on 02\u3a9, where \u3bc is a Radon measure with bounded variation on \u3a9. We prove the existence of such a solution, a stability result, and partial uniqueness results
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