共 50 条
- [43] Concerning approximate solutions of partial differential equations with three independant variables COMPTES RENDUS DE L ACADEMIE DES SCIENCES DE L URSS, 1934, 4 : 12 - 16
- [45] COMPOSITION OF SOLUTIONS OF LINEAR PARTIAL DIFFERENTIAL EQUATIONS IN 2 INDEPENDENT VARIABLES JOURNAL OF MATHEMATICS AND MECHANICS, 1959, 8 (02): : 185 - 191
- [47] On reduction of some classes of partial differential equations to equations with fewer variables and exact solutions Siberian Mathematical Journal, 2006, 47 : 653 - 658
- [48] The application of quadratic forms in an infinity of variables to boundary problems in partial differential equations. PROCEEDINGS OF THE CAMBRIDGE PHILOSOPHICAL SOCIETY, 1932, 28 : 23 - 34