%0 Journal Article %A Howard A. Levine %T Some Uniqueness and Growth Theorems in the Cauchy Problem for P utt + M ut + Nu = 0 in Hilbert Space. %J Mathematische Zeitschrift %D 1972 %P 345-360 %V 126 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1972__126_171746/ %F MZ_1972__126_171746