TY - JOUR AU - Jose A. Franco TI - On the $n$-Dimensional Porous Medium Diffusion Equation and Global Actions of the Symmetry Group JO - Symmetry, integrability and geometry: methods and applications PY - 2013 VL - 9 UR - http://geodesic.mathdoc.fr/item/SIGMA_2013_9_a10/ LA - en ID - SIGMA_2013_9_a10 ER -