摘要
Consider two vector spaces A and B of single sequences of complex numbers. Say (A,B) is the space of multipliers from A to B, or more precisely, (A, B)= {λ={λ_n}∞/0{λ_na_n}∞/0∈B for every {a_n}∞/0∈A}. We regard an analytic function as being the sequence of its Taylor coefficients. Sequence space A is said to be solid if, whenever it contains {a_n} it also contains all sequences {b_n} with |b_n|≤|a_n|. Let s(A) denote the largest solid subspace in A.
基金
Project supported by the National Natural Science Foundation of China
