A Remark on Periodic Tchebyshev Systems.
Roland Zielke (1972)
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Roland Zielke (1972)
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Ralf Kern (1977)
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Heinrich Steinlein (1996)
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Ralf Kern (1977)
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Zhanyong Li, Qihuai Liu, Kelei Zhang (2020)
Applications of Mathematics
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In many engineering problems, when studying the existence of periodic solutions to a nonlinear system with a small parameter via the local averaging theorem, it is necessary to verify some properties of the fundamental solution matrix to the corresponding linearized system along the periodic solution of the unperturbed system. But sometimes, it is difficult or it requires a lot of calculations. In this paper, a few simple and effective methods are introduced to investigate the existence...
Klaus Deimling (1978)
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J. Ligęza (1977)
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The existence of a continuous periodic and almost periodic solutions of the nonlinear integral inclusion is established by means of the generalized Schauder fixed point theorem.
Takashi Matsuoka (1982/83)
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