... a constant independent IlvilL =llvll~,w < M(IITJIilo,w' of hand (14) z(x), + II'Vvllo,wl, II'Vvll~,wl ==('Vv, 'Vv)', + IITJ2110,w' + IITJollo,wl), and, then, == ~ == vi~ o.S;) Ilvllo,w 'Vv(x(±o.S;)) ... Generalized Functions in Mathematical Physic, Mir., Moscow, 1979 Received May Revised April Institute of Mathematics, Hanoi, Vietnam 18, 1999 26, 2000 ... - It is known (see [5], [9]' etc.) that the right hand side of differential equations in the environment problems may be a functional (e.g., f is the Dirac delta functions 8) The estimates (17),...