Italian Journal of Vascular and Endovascular Surgery.
Edizioni Minerva Medica.
Vol. 25.
2018.
P. 199-202
Salem’s necessary conditions for a trigonometric series to be the Fourier series of an integrable function are generalized to the nonperiodic case for functions in the Wiener algebra. Applications of the obtained result are given. © 2018, Pleiades Publishing, Ltd.