Аннотация:
In this paper, we investigate the problem of trigonometric multipliers in the sequence spaces $\lambda_{p,q}$. Embedding theorems of the Lorentz and Besov spaces into the space of trigonometric Fourier series multipliers are formulated.
Ключевые слова и фразы:trigonometric Fourier coefficients, Lorentz and Besov spaces, $M_{p_0,q_0}^{p_1,q_1}$ spaces.