On two absolute Riesz summability factors of infinite series
1993 ◽
Vol 118
(2)
◽
pp. 485-485
◽
1993 ◽
Vol 118
(2)
◽
pp. 485
◽
1970 ◽
Vol 17
(1)
◽
pp. 65-70
1964 ◽
Vol s1-39
(1)
◽
pp. 455-465
◽