Existence of periodic solutions for a semilinear ordinary differential equation
Dancer [3] found a necessary and sufficient condition for the existence of periodic solutions to the equation $$ ddot x +g_1(dot x) + g_0(x) = f(t),.$$ His condition is based on a functional that depends on the solution to the above equation with $g_0=0$. However, that solution is not always explici...
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| Format: | Article |
| Language: | English |
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Texas State University
1998-11-01
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| Series: | Electronic Journal of Differential Equations |
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| Online Access: | http://ejde.math.txstate.edu/Volumes/1998/31/abstr.html |