MATHEMATISCHE NACHRICHTEN, vol.284, no.10, pp.1219-1233, 2011 (SCI-Expanded)
We are concerned with the nonexistence of positive solutions of the nonlinear parabolic partial differential equations in a cylinder Omega x (0, T) with initial condition u(., 0) = u(0) (.) >= 0 and vanishing on the boundary partial derivative Omega x (0, T), given by