Porous medium equation Porous materials 6 Blow up 4 Boundary conditions 4 Mathematical models 4 Nonlinear boundary conditions 4 Numerical blow-up 4 Absorption 2 Asymptotic behavior 2 Asymptotic behaviors 2 Asymptotic simplification 2 Asymptotic stability 2 Blow up solution 2 Boundary value problems 2 Compactly supported 2 Curve fitting 2 Decay (organic) 2 Exterior domain 2 Fujita curve 2 Global existence 2 Instantaneous point source 2 Integration 2 Logarithmic corrections 2 Matched asymptotics 2 Nonlinear boundary condition 2 Nonlinear equations 2 Plating 2 Reaction diffusion problem 2 Theorem proving 2 Thermal conductivity 2