Electron. J. Diff. Eqns., Vol. 2007(2007), No. 37, pp. 1-21.

On a class of nonlinear variational inequalities: High concentration of the graph of weak solution via its fractional dimension and Minkowski content

Luka Korkut, Mervan Pasic

Abstract:
Weak continuous bounded solutions of a class of nonlinear variational inequalities associated to one-dimensional p-Laplacian are studied. It is shown that a kind of boundary behaviour of nonlinearity in the main problem produces a kind of high boundary concentration of the graph of solutions. It is verified by calculating lower bounds for the upper Minkowski-Bouligand dimension and Minkowski content of the graph of each solution and its derivative. Finally, the order of growth for singular behaviour of the $L^{p}$ norm of derivative of solutions is given.

Submitted November 19, 2006. Published March 1, 2007.
Math Subject Classifications: 35J85, 34B15, 28A75.
Key Words: Double obstacles; nonlinear p-Laplacian; graph; fractional dimension; Minkowski content; singularity of derivative.

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  Luka Korkut
Department of mathematics
Faculty of Electrical Engineering and Computing
University of Zagreb
Unska 3, 10000 Zagreb, Croatia
e-mail: luka.korkut@fer.hr
Mervan Pasic
Department of mathematics
Faculty of Electrical Engineering and Computing
University of Zagreb
Unska 3, 10000 Zagreb, Croatia
e-mail: mervan.pasic@fer.hr

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