%0 Journal Article %A V. A. Galaktionov %T On Nonexistence of Baras--Goldstein Type without Positivity Assumptions for Singular Linear and Nonlinear Parabolic Equations %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2008 %P 130-150 %V 260 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_2008_260_a8/ %G en %F TM_2008_260_a8