A sum of periodic functions and some series with small gaps
β Scribed by B. S. Tsirel'son
- Publisher
- Springer US
- Year
- 1977
- Tongue
- English
- Weight
- 117 KB
- Volume
- 8
- Category
- Article
- ISSN
- 1573-8795
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π SIMILAR VOLUMES
The method of Fourier series expansion is used to treat the spatial dependence of the electric field in the theory of the Gunn effect. Physical consequences of using the frequently used Born-von Karman periodic basis functions are discussed. It is shown that periodic basis functions impose rather un
This paper deals with the existence of periodic solutions for some partial functional differential equations with infinite delay. We suppose that the linear part is nondensely defined and satisfies the HilleαYosida condition. In the nonlinear case we give several criteria to ensure the existence of