Title of article :
Characterizing filters by convergence (with respect to filters) in Banach spaces
Author/Authors :
Garcيa-Ferreira، نويسنده , , S. and Pino-Villela، نويسنده , , H.S.، نويسنده ,
Issue Information :
دوماهنامه با شماره پیاپی سال 2012
Abstract :
Let X be a topological space and let F be a filter on N , recall that a sequence ( x n ) n ∈ N in X is said to be F -convergent to the point x ∈ X , if for each neighborhood U of x, { n ∈ N : x n ∈ U } ∈ F . By using F -convergence in ℓ 1 and in Banach spaces, we characterize the P-filters, the P-filters+, the weak P-filters, the Q-filters, the Q-filters+, the weak Q-filters, the selective filters and the selective+ filters.
Keywords :
Schauder basis , P-filter , P-filter+ , Weak P-filter , Q-filter , Q-filter+ , Weak Q-filter , Selective filter , Selective+ filter , Schur filter , Weakly selective filter , Banach space
Journal title :
Topology and its Applications
Journal title :
Topology and its Applications