A stability result for p-harmonic systems with discontinuous coefficients
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The present paper is concerned with p-harmonic systems
div(⟨A(x) Du(x), Du(x)⟩ p-2/2 A(x) Du(x)) = div(√A(x) F(x)),
where A(x) is a positive definite matrix whose entries have bounded mean oscillation (BMO), p is a real number greater than 1 and F ∈ > r/p-1 is a given matrix field. We find a-priori estimates for a very weak solution of class W1,r, provided r is close to 2, depending on the BMO norm of √A, and p close to r. This result is achieved using the corresponding existence and uniqueness result for linear systems with BMO coefficients [St], combined with nonlinear commutators.
CitationStroffolini, B. (2001). A stability result for p-harmonic systems with discontinuous coefficients. Electronic Journal of Differential Equations, 2004(02), pp. 1-7.
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