The upper and lower solution method for some fourth-order boundary value problems

2007 ◽  
Vol 67 (6) ◽  
pp. 1704-1709 ◽  
Author(s):  
Zhanbing Bai
2012 ◽  
Vol 2012 ◽  
pp. 1-14
Author(s):  
Ilkay Yaslan Karaca

We consider a fourth-order four-point boundary value problem for dynamic equations on time scales. By the upper and lower solution method, some results on the existence of solutions of the fourth-order four-point boundary value problem on time scales are obtained. An example is also included to illustrate our results.


2013 ◽  
Vol 2013 ◽  
pp. 1-11
Author(s):  
Dandan Yang ◽  
Chuanzhi Bai

We establish the existence of unbounded solutions for nonlinear fractional boundary value problems on the half-line. By the upper and lower solution method technique, sufficient conditions for the existence of solutions for the fractional boundary value problems are established. An example is presented to illustrate our main result.


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