共 50 条
- [44] A THEOREM ON SUMMABILITY FACTORS FOR THE NORLUND METHOD FOR DOUBLE SERIES IN ULTRAMETRIC FIELDS TWMS JOURNAL OF APPLIED AND ENGINEERING MATHEMATICS, 2020, 10 : 9 - 14
- [50] A CONVERSE THEOREM ON SUMMABILITY METHODS PROCEEDINGS OF THE JAPAN ACADEMY, 1963, 39 (01): : 38 - &