%0 Journal Article %A M. O. Korpusov %A A. A. Panin %A A. E. Shishkov %T On the critical exponent “instantaneous blow-up” versus “local solubility” in the Cauchy problem for a model equation of Sobolev type %J Izvestiya. Mathematics %D 2021 %P 111-144 %V 85 %N 1 %U http://geodesic.mathdoc.fr/item/IM2_2021_85_1_a4/ %G en %F IM2_2021_85_1_a4