Abstract
Let L 1 be the class of all complex-valued functions, with period 2π in each variable, in the space , where \(\mathbb{T} = [0,2\pi )\) is the one-dimensional torus. Here, it is observed that L 1 * E ⊆ E for E = Lip(p; α 1, α 2, ..., α N ) over , for , for , and for in the sense of Vitali as well as Hardy.
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Пусть L 1 — класс всех интегрируемых комплекснозначных функций периода по каждой из переменных в пространстве , где \(\mathbb{T} = [0,2\pi )\) — одномерный тор. Мы доказываем, что L 1 * E ⊆ E для E = Lip(p; α 1, α 2, ..., α N ) над , для , для , и для в смысле Витали, а также в смысле Харди.
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Vyas, R.G. Convolution functions of several variables with generalized bounded variation. Anal Math 39, 153–161 (2013). https://doi.org/10.1007/s10476-013-0205-0
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DOI: https://doi.org/10.1007/s10476-013-0205-0