共 50 条
- [1] SYMMETRIES AND PARTIAL-DIFFERENTIAL EQUATIONS [J]. NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1976, 23 (07): : A682 - A682
- [6] THEORY OF HIGHER INFINITESIMAL SYMMETRIES OF NON-LINEAR PARTIAL-DIFFERENTIAL EQUATIONS [J]. DOKLADY AKADEMII NAUK SSSR, 1979, 248 (02): : 274 - 278
- [8] POTENTIAL SYMMETRIES AND SOLUTIONS BY REDUCTION OF PARTIAL-DIFFERENTIAL EQUATIONS [J]. JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1993, 26 (03): : 681 - 690