Non ordered lower and upper solutions to fourth order problems with functional boundary conditions
- Cabada, A.
- Fialho, J.
- Minhós, F.
Zeitschrift:
Discrete and Continuous Dynamical Systems- Series A
ISSN: 1078-0947, 1553-5231
Datum der Publikation: 2011
Seiten: 209-218
Art: Artikel