We continue the study of limit-pointrlimit-circle type differential equations of the nth order. In particular, we show that the differential expression y Ž4 k . q ry, k s 1, 2, . . . , is never of the limit-circle type as long as r is not an unbounded oscillatory function; this partially answers an
Limit-point type results for nonlinear fourth-order differential equations
✍ Scribed by M. Bartušek; Z. Došlá; John R. Graef
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 641 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0362-546X
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