Higher order nonlinear two-point boundary value problems with sign-type Nagumo condition

Author(s):  
Maria do Rosário Grossinho ◽  
Feliz Minhós ◽  
Ana Isabel Santos ◽  
Alberto Cabada ◽  
Eduardo Liz ◽  
...  
2009 ◽  
Vol 52 (3) ◽  
pp. 787-796
Author(s):  
Libo Wang ◽  
Minghe Pei ◽  
Weigao Ge

AbstractThe upper and lower solutions method and Leray–Schauder degree theory are employed to establish the existence result for a class of nonlinear third-order two-point boundary-value problems with a sign-type Nagumo condition.


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