( ) Eduard Shekhter, The free researcher, Germany, Linsingenstr. 34, 30163 Hannover, ed.shekhter@gmail.com www.chekhter.de , . , , , ( ) . . , . [1]. , , , , , , , , ( Al2O3 ) x ( MnO)1 x . 2 xM Al M (1 x) M Mn c2 cMn M 3M O x M O (1 x ) c3 cO M c1 c Al , M Al , M Mn , M O M 2 M Al 3M O x M Mn , . M O (1 x ) x. x c1 , c2 , c3 : 3 c1 2 M1 c3 M3 c2 M2 , 0 (1) c1 c2 c3 1 M1 M Al , M 2 3 / 2M1 1 G M Mn , M 3 1/ M 2 1 MO . 1/ M 3 1 u 0 1 c c1 , c2 , c3 , (1) Gc u (2) . . 1. . ., . , http://www.chekhter.de 2. Albert, A. (1972) Regression and the Moore-Penrose Pseudoinverse; A.P., N.Y. . .)