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Periodic Positive Solution to a Class of Singular Second-Order Ordinary Differential Equations

Authors:

Qingliu Yao

Abstract:

This paper studies the existence of a positive solution to the second-order periodic boundary value problem

u^￠￠(t)+l(t)u(t)=f(t,u(t)), 0 < t < 2p, u(0)=u(2p), u^￠(0)=u^￠(2p),u^{\prime \prime }(t)+\lambda (t)u(t)=f\bigl(t,u(t)\bigr),\quad 0

Keywords:
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