共 50 条
- [2] BOUNDEDNESS OF SOLUTIONS OF 2ND-ORDER DIFFERENTIAL-EQUATIONS AND 2ND-ORDER DIFFERENTIAL-EQUATIONS WITH DELAY [J]. CHINESE SCIENCE BULLETIN, 1989, 34 (02): : 171 - 172
- [6] GEOMETRY OF 2ND-ORDER DIFFERENTIAL-EQUATIONS [J]. ANNALES DE L INSTITUT HENRI POINCARE-PHYSIQUE THEORIQUE, 1986, 45 (01): : 1 - 28
- [7] ON OSCILLATION OF 2ND-ORDER DIFFERENTIAL-EQUATIONS [J]. INDIAN JOURNAL OF PURE & APPLIED MATHEMATICS, 1981, 12 (12): : 1425 - 1428
- [8] MAXIMUM-PRINCIPLES FOR SOME 2ND-ORDER NONHOMOGENEOUS SEMILINEAR EQUATIONS [J]. BOLLETTINO DELLA UNIONE MATEMATICA ITALIANA, 1991, 5A (02): : 245 - 252