Abstract
This paper is concentrated on giving a module containment theorem for piecewise continuous almost periodic functions (pcap function for short). One first analyses the relationship between the translation number set and some Fourier exponents of a pcap function. And then, combining with Kronecker’s theorem, a module containment theorem for a pcap function is established for the first time. As an application, the module structure of a pcap solution for an impulsive differential equation is characterized. Some remarks and a corollary are given to show the advantage of the module containment theorem.
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This work was supported by the Fundamental Research Funds for the Central Universities (3102014JC-Q01087).
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Wang, L. On a module containment theorem of piecewise continuous almost periodic functions and its application. Anal Math 42, 387–400 (2016). https://doi.org/10.1007/s10476-016-0406-4
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DOI: https://doi.org/10.1007/s10476-016-0406-4
Key words and phrases
- (piecewise continuous) almost periodic function
- module
- Kronecker’s theorem
- impulsive differential equation