共 50 条
- [23] PERIODICAL SOLUTIONS OF DIFFERENTIAL EQUATIONS INVOLVING A TIME LAG DOKLADY AKADEMII NAUK SSSR, 1957, 114 (02): : 252 - 255
- [24] GALERKINS METHOD FOR CONSTRUCTING PERIODICAL SOLUTIONS OF INTEGRO-DIFFERENTIAL EQUATIONS SYSTEMS DOPOVIDI AKADEMII NAUK UKRAINSKOI RSR SERIYA A-FIZIKO-MATEMATICHNI TA TECHNICHNI NAUKI, 1978, (01): : 14 - 18
- [27] ALMOST PERIODICAL SOLUTIONS OF FACTORED DIFFERENTIAL-EQUATION IN PARTIAL DERIVATIVES DOPOVIDI AKADEMII NAUK UKRAINSKOI RSR SERIYA A-FIZIKO-MATEMATICHNI TA TECHNICHNI NAUKI, 1983, (11): : 27 - 29
- [28] EXISTENCE OF PERIODICAL SOLUTIONS OF QUASI-HOMOGENEOUS SYSTEMS ON THE PLANE VESTNIK LENINGRADSKOGO UNIVERSITETA SERIYA MATEMATIKA MEKHANIKA ASTRONOMIYA, 1985, (03): : 94 - 95
- [30] BOUNDED SOLUTIONS TO SYSTEMS OF ORDINARY SECOND-ORDER DIFFERENTIAL EQUATIONS DOKLADY AKADEMII NAUK SSSR, 1968, 180 (02): : 266 - &