共 50 条
- [21] OSCILLATION CRITERIA FOR 2ND ORDER SUPERLINEAR DIFFERENTIAL-EQUATIONS CANADIAN JOURNAL OF MATHEMATICS-JOURNAL CANADIEN DE MATHEMATIQUES, 1989, 41 (02): : 321 - 340
- [24] OSCILLATION IN EVEN ORDER LINEAR-DIFFERENTIAL EQUATIONS NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1974, 21 (07): : A615 - A615
- [25] SOME RESULTS ON THE COMPLEX OSCILLATION-THEORY OF PERIODIC 2ND-ORDER LINEAR-DIFFERENTIAL EQUATIONS KEXUE TONGBAO, 1988, 33 (13): : 1064 - 1068
- [27] OSCILLATION CRITERIA FOR A CLASS OF 3RD ORDER LINEAR-DIFFERENTIAL EQUATIONS BOLLETTINO DELLA UNIONE MATEMATICA ITALIANA, 1983, 2C (01): : 297 - 306
- [30] ON THE ZEROS OF THE REAL AND IMAGINARY PART OF THE SOLUTIONS OF 2ND ORDER LINEAR-DIFFERENTIAL EQUATIONS MONATSHEFTE FUR MATHEMATIK, 1981, 92 (04): : 291 - 297