ATOMIC RADIAL INTEGRALS AND A USE OF O(2,1) TRANSFORMATION.KUMEI S.1974; PHYS. REV., A; U.S.A.; DA. 1974; VOL. 9; NO 6; PP. 2306-2311; BIBL. 24 REF.Article

ON THE RELATIONSHIP BETWEEN CONSERVATION LAWS AND INVARIANCE GROUPS OF NONLINEAR FIELD EQUATIONS IN HAMILTON'S CANONICAL FORM.KUMEI S.1978; J. MATH. PHYS.; U.S.A.; DA. 1978; VOL. 19; NO 1; PP. 195-199; BIBL. DISSEM.Article

GROUP THEORETIC ASPECTS OF CONSERVATION LAWS OF NONLINEAR DISPERSIVE WAVES: KDV TYPE EQUATIONS AND NONLINEAR SCHROEDINGER EQUATIONS.KUMEI S.1977; J. MATH. PHYS.; U.S.A.; DA. 1977; VOL. 18; NO 2; PP. 256-264; BIBL. 21 REF.Article

WHEN NONLINEAR DIFFERENTIAL EQUATIONS ARE EQUIVALENT TO LINEAR DIFFERENTIAL EQUATIONSKUMEI S; BLUMAN GW.1982; SIAM J. APPL. MATH.; ISSN 0036-1399; USA; DA. 1982; VOL. 42; NO 5; PP. 1157-1173; BIBL. 21 REF.Article

ON THE REMARKABLE NONLINEAR DIFFUSION EQUATION (D ROND /D ROND X)(A(U+B)^-2 (D ROND U/D ROND X))-(D ROND U/D ROND T)=0BLUMAN G; KUMEI S.1980; J. MATH. PHYS.; USA; DA. 1980; VOL. 21; NO 5; PP. 1019-1023; BIBL. 22 REF.Article

Exact solutions for wave equations of two-layered media with smooth transitionBLUMAN, G; KUMEI, S.Journal of mathematical physics. 1988, Vol 29, Num 1, pp 86-96, issn 0022-2488Article

On invariance properties of the wave equationBLUMAN, G; KUMEI, S.Journal of mathematical physics. 1987, Vol 28, Num 2, pp 307-318, issn 0022-2488Article

Use of group analysis in solving overdetermined systems of ordinary differential equationsBLUMAN, G. W; KUMEI, S.Journal of mathematical analysis and applications. 1989, Vol 138, Num 1, pp 95-105, issn 0022-247XArticle