共 50 条
- [12] DISCONJUGACY CRITERIA FOR NONSELFADJOINT DIFFERENTIAL EQUATIONS OF EVEN ORDER [J]. CANADIAN JOURNAL OF MATHEMATICS, 1971, 23 (04): : 644 - &
- [15] DISCONJUGACY CRITERIA FOR NONSELFADJOINT DIFFERENTIAL EQUATIONS OF EVEN ORDER [J]. NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1970, 17 (05): : 776 - &
- [18] ON DISCONJUGACY CRITERIA [J]. PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY, 1970, 24 (02) : 374 - &
- [19] SOME REMARKS ON CONFORMAL DIFFERENTIAL IN A SPECIAL KAWAGUCHI SPACE [J]. TENSOR, 1969, 20 (01): : 75 - &