scholarly journals An Existence Theorem for a Nonlinear Boundary Value Problem of Fourth Order

1993 ◽  
Vol 174 (2) ◽  
pp. 317-326
Author(s):  
G.L. Chen
2011 ◽  
Vol 16 (1) ◽  
pp. 143-152
Author(s):  
Inara Yermachenko

This paper is devoted to the study the nonlinear boundary value problem . We state a maximum principle related with the operator and apply it to prove the existence and approximation of solutions to the problem (i), (ii), in presence of properly ordered lower and upper functions.


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