Periodic solutions to a second order nonlinear neutral functional differential equation in the critical case (Q2492456)
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| English | Periodic solutions to a second order nonlinear neutral functional differential equation in the critical case |
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Periodic solutions to a second order nonlinear neutral functional differential equation in the critical case (English)
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9 June 2006
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By means of a continuation theorem from the coincidence degree theory, the authors derive sufficient conditions for the existence of periodic solutions of neutral functional-differential equations of the type \[ (x(t)-cx(t-\tau))''=f(x(t))x'(t)+g(t,x(t-\mu(t)))+e(t). \]
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neutral functional-differential equations
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periodic solutions
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critical case
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coincidence degree
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