A generalized upper and lower solutions method and multiplicity results for nonlinear first-order ordinary differential equations
- 1 June 1989
- journal article
- Published by Elsevier in Journal of Mathematical Analysis and Applications
- Vol. 140 (2) , 381-395
- https://doi.org/10.1016/0022-247x(89)90072-3
Abstract
No abstract availableKeywords
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