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Periodic solutions to a second-order differential equation with deviating arguments. (Chinese. English summary) Zbl 1027.34079

Summary: Using the theory of coincidence degree, the authors study some kind of periodic solutions to the second-order differential equation with deviating arguments \[ x''(t)+ f(t, x(t), x(t-\tau_0(t))) x'(t)+ \beta(t) g(x(t- \tau_1(t)))= p(t). \] {}.

MSC:

34K13 Periodic solutions to functional-differential equations
47N20 Applications of operator theory to differential and integral equations
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