Results 111 to 113 of about 976 (113)

Remarks on the approximate positive for Lotka-McKendrick system by positive birth control

, 2015
This paper is devoted to study the approximate positive controllability for an age dependant population equation with birth process.
M. Azzouzi
semanticscholar   +1 more source

Perspectives in nonlinear diffusion : between analysis , physics and geometry

, 2006
We review some topics in the mathematical theory of nonlinear diffusion. Attention is focused on the porous medium equation and the fast diffusion equation, including logarithmic diffusion.
Juan Luis Vázquez
semanticscholar   +1 more source

Liouville theorems in halfspaces for parabolic hypoelliptic equations

, 2006
A. Kogoj, E. Lanconelli
semanticscholar   +1 more source