New a Priori Estimates for q-Nonlinear Elliptic Systems with Strong Nonlinearities in the Gradient, 1&lt;q&lt;2

Arkhipova, A. A.

doi:10.1007/s10958-005-0495-2

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2008

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“…θ and θ 1 in (13) and (14) depend on the data of the problem, θ 1 = c(n)θ. (The same relaxations for q-nonlinear systems, 1 < q < 2 , can be found in [13].) In the situations when (14) can be relaxed to the condition:…”

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confidence: 99%

New a priori estimates for nondiagonal strongly nonlinear parabolic systems

Arkhipova

2008

Parabolic and Navier–Stokes Equations

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We consider nondiagonal elliptic and parabolic systems of equations with quadratic nonlinearities in the gradient. We discuss a new description of regular points of solutions of such systems. For a class of strongly nonlinear parabolic systems, we estimate locally the Hölder norm of a solution. Instead of smallness of the oscillation, we assume local smallness of the Campanato seminorm of the solution under consideration. Theorems about quasireverse Hölder inequalities proved by the author are essentially used. We study systems under the Dirichlet boundary condition and estimate the Hölder norm of a solution up to the boundary (up to the parabolic boundary of the prescribed cylinder in the parabolic case).

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confidence: 99%