Some questions on convergence of multiple Fourier series :  Dissertation : by specialty A.01.01 "Mathematical Analysis" for the degree of candidate of physica and mathematical sciences / 
Lusine Suren Simonyan ; Yerevan State University. 
 - Yerevan :     [S. n.],   2020. 
 - 71 pages ;  30 cm. 
<br/><br/>Scientific supervisor doctor of physical and mathematical sciences, professor M.G. Grigoryan.