Generalized symmetric derivative and Lebesgue summability of multiple trigonometric series
1990 ◽
Vol 108
(2)
◽
pp. 571
1989 ◽
Vol 32
(3)
◽
pp. 627-654
2011 ◽
Vol 27
(4)
◽
pp. 741-746
◽
1977 ◽
Vol 225
◽
pp. 199-199
◽
1971 ◽
Vol 77
(1)
◽
pp. 123-128
◽