An ordered set of Nörlund means
[摘要] Nörlund methods of summability are studied as mappings fromℓ1intoℓ1. Those Nörlund methods that mapℓ1intoℓ1are characterized. Inclusion results are given and a class of Nörlund methods is shown to form an ordered abelian semigroup.
[发布日期] [发布机构]
[效力级别] [学科分类] 数学（综合）
[关键词] [时效性]
