Two positive solutions for boundary value problems of a kind of Sturm-Liouville functional differential equations. (Q1865978)
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scientific article; zbMATH DE number 1890859
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Two positive solutions for boundary value problems of a kind of Sturm-Liouville functional differential equations. |
scientific article; zbMATH DE number 1890859 |
Statements
Two positive solutions for boundary value problems of a kind of Sturm-Liouville functional differential equations. (English)
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15 July 2003
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A boundary value problem of mixed type for the equation \[ (p(t)u')'+q(t)u+\sum_{i=1}^na_i(t)(u(t+\tau_i))^{\gamma_i}=0 \] is considered. Conditions guaranteeing the existence of two nontrivial nonnegative solutions are established.
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existence
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functional-differential equations
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boundary value problems
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fixed-point theorems
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