Mixed boundary valued problem for linear and nonlinear wave equations in domains with fractal boundaries

Adrien Dekkers, Anna Rozanova-Pierrat, Alexander Teplyaev

英文摘要：

The weak well-posedness, with the mixed boundary conditions, of the strongly damped linear wave equation and of the non linear Westervelt equation is proved in the largest natural class of Sobolev admissible non-smooth domains. In the framework of uniform domains in R^2 or R^3 we also validate the approximation of the solution of the Wester-velt equation on a fractal domain by the solutions on the prefractals using the Mosco convergence of the corresponding variational forms.

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