%0 Journal Article %A Hernandez, Gaston E. %A Roussos, Ioannis M. %T The Hölder Exponent for Radially Symmetric Solutions of Porous Medium Type Equations %J Canadian journal of mathematics %D 1991 %P 313-321 %V 43 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1991-017-1/ %R 10.4153/CJM-1991-017-1 %F 10_4153_CJM_1991_017_1