Periodic solutions of retarded functional differential equations
Abstract
The classical criterion for the existence of a periodic solution of a forced, linear, retarded functional differential equation (rfde) references the solution of an adjoint equation which is an advanced functional differential equation. This paper introduces a new criterion which does away with the (anti-causal) advanced functional differential equation.
- Publication:
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Zeitschrift Angewandte Mathematik und Physik
- Pub Date:
- July 2001
- DOI:
- 10.1007/PL00001569
- Bibcode:
- 2001ZaMP...52..704F
- Keywords:
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- Key words. eneralized left characteristic matrix equation;
- T-periodic solution.