A Necessary and Sufficient Condition for the Existence of Positive Solutions to Singular Boundary-value Problems of Higher Order Differential Equations
نویسندگان
چکیده
By constructing some special cones and using fixed point theorem of cone expansion and compression, this paper presents some necessary and sufficient conditions for the existence of C4n−2 positive solutions to a class of singular boundary-value problems. Some examples are presented to illustrate our main results.
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