Domain optimal with respect to (x,t) for a parabolic equation

KUZNETSOV M.L., MEDVEDEV Y.N., ZAITSEV B.E., IVANOV V.M.

DAVYDOV V.V., SOKOL V.I., BALEBANOVA E.V., SHKLYAEV Y.V., ZAKHAROV V.F., KUZNETSOV S.L., ZAITSEV B.E.