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Showing 1 to 2 of 2 for “"Kritischer Exponent"”.
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Blow-up in a degenerate parabolic equation with gradient nonlinearity
… in case of kappa = 0 it was proved that the exponent q=p+1 is critical with respect to blow-up. In this thesis we particularly show the influence of the gradient term on this behavior of the solutions for positive or negative values of kappa. In Chapter 1 we prove that the equation mentioned …
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On upper bounds for waiting times for doubly nonlinear parabolic equations
It is the aim of this thesis to derive quantitative upper bounds for waiting time phenomena. Herein the waiting time of a nonnegative function u: R^n x [0, infty) -> [0, infty) denotes the time when u starts leaving the initial support supp(u(.,0)) for the first time. We will examine how the …