AbstractWe classify up to isomorphism the spaces of compact operators K(E,F), where E and F are Banach spaces of all continuous functions defined on the compact spaces 2m⊕[0,α], the topological sum of Cantor cubes 2m and the intervals of ordinal numbers [0,α]. More precisely, we prove that if 2m and ℵγ are not real-valued measurable cardinals and n⩾ℵ0 is not sequential cardinal, then for every ordinals ξ, η, λ and μ with ξ⩾ω1, η⩾ω1, λ=μ<ω or λ,μ∈[ωγ,ωγ+1[, the following statements are equivalent:(a)K(C(2m⊕[0,λ]),C(2n⊕[0,ξ])) and K(C(2m⊕[0,μ]),C(2n⊕[0,η])) are isomorphic.(b)Either C([0,ξ]) is isomorphic to C([0,η]) or C([0,ξ]) is isomorphic to C([0,αp]) and C([0,η]) is isomorphic to C([0,αq]) for some regular cardinal α and finite ordinals p...
Given two normed spaces X, Y , the aim of this paper is establish that the existence of an isomorphi...
AbstractWe study products of the first uncountable ordinal space [0,Ω) with itself. We show that any...
AbstractLet X be a Banach space with closed unit ball B. Given k∈N, X is said to be k-β, respectivel...
AbstractWe classify up to isomorphism the spaces of compact operators K(E,F), where E and F are Bana...
Let a compact Hausdorff space X contain a non-empty perfect subset. If α < β and β is a countable or...
AbstractThe statement of the title is proved. It follows from this that the spaces c0(ℓp), ℓp(c0) an...
AbstractLet X and Y be the Alexandroff compactifications of the locally compact spaces X and Y, resp...
AbstractLet X, Y be two Banach spaces, ε⩾0, and let f:X→Y be an ε-isometry with f(0)=0. In this pape...
AbstractIn this paper, we characterize some operators and matrix transformations in the sequence spa...
AbstractWe will characterize metacompactness, subparacompactness and paracompactness of subspaces of...
[EN] The Cech number of a space Z, C(Z), is the pseudocharacter of Z in βZ. In this article we obtai...
AbstractWe prove some basic properties of p-bounded subsets (p∈ω∗) in terms of z-ultrafilters and fa...
AbstractLet μ be a complex Borel measure on the unit ball of Cn and α>−1. We characterize the measur...
AbstractWe consider which ordinals, with the order topology, can be Stone–Čech remainders of which s...
For any cardinal number $\kappa$ and an index set $\Gamma$, $\Sigma_\kappa$-product of real lines co...
Given two normed spaces X, Y , the aim of this paper is establish that the existence of an isomorphi...
AbstractWe study products of the first uncountable ordinal space [0,Ω) with itself. We show that any...
AbstractLet X be a Banach space with closed unit ball B. Given k∈N, X is said to be k-β, respectivel...
AbstractWe classify up to isomorphism the spaces of compact operators K(E,F), where E and F are Bana...
Let a compact Hausdorff space X contain a non-empty perfect subset. If α < β and β is a countable or...
AbstractThe statement of the title is proved. It follows from this that the spaces c0(ℓp), ℓp(c0) an...
AbstractLet X and Y be the Alexandroff compactifications of the locally compact spaces X and Y, resp...
AbstractLet X, Y be two Banach spaces, ε⩾0, and let f:X→Y be an ε-isometry with f(0)=0. In this pape...
AbstractIn this paper, we characterize some operators and matrix transformations in the sequence spa...
AbstractWe will characterize metacompactness, subparacompactness and paracompactness of subspaces of...
[EN] The Cech number of a space Z, C(Z), is the pseudocharacter of Z in βZ. In this article we obtai...
AbstractWe prove some basic properties of p-bounded subsets (p∈ω∗) in terms of z-ultrafilters and fa...
AbstractLet μ be a complex Borel measure on the unit ball of Cn and α>−1. We characterize the measur...
AbstractWe consider which ordinals, with the order topology, can be Stone–Čech remainders of which s...
For any cardinal number $\kappa$ and an index set $\Gamma$, $\Sigma_\kappa$-product of real lines co...
Given two normed spaces X, Y , the aim of this paper is establish that the existence of an isomorphi...
AbstractWe study products of the first uncountable ordinal space [0,Ω) with itself. We show that any...
AbstractLet X be a Banach space with closed unit ball B. Given k∈N, X is said to be k-β, respectivel...