AbstractFor all positive a the point spectrum of the (C, α) matrix is determined, where the matrix is regarded as an operator on certain Banach sequence spaces. In particular the point spectrum is obtained in the spaces Ip(X), with 1<p≤∞, where X is a Banach space
AbstractLet A1,…,Ak,C,PϵB(H), the Banach algebra of all bounded linear operators on a complex Hilber...
AbstractThis paper concerns the structure of the predual of certain singly generated operator algebr...
There are many different ways to subdivide the spectrum of a bounded linear operator; some of them a...
AbstractA complete description is given of the eigenvalues of the matrix A associated with absolute ...
AbstractThe Cesàro and Hölder operators of order 2 are equivalent as summability methods. However, t...
The sequence space bvp consisting of all sequences (xk) such that (xk - xk-1) in the sequence space ...
The sequence space bvp consisting of all sequences (xk) such that (xk - xk-1) in the sequence space ...
An investigation is made of the continuity, the compactness and the spectrum of the Cesàro operator...
The Fréchet sequence spaces $ces(p+)$ are very different to the Fréchet sequence spaces $ell_{p+}$,...
AbstractA continuation of [6]. Gershgorin-type estimates for spectra in Banach spaces and Hilbert sp...
AbstractLet A ∈ B(X), the algebra of all bounded linear operators on a complex Banach space X, and l...
AbstractThe main result asserts that, for any contraction T on an arbitrary Banach space X, ∥ Tn − T...
Abstract. The sequence space bvp consisting of all sequences (xk) such that (xk xk1) in the sequenc...
There are many different ways to subdivide the spectrum of a bounded linear operator; some of them a...
[EN] An investigation is made of the continuity, the compactness and the spectrum of the Ces`aro ope...
AbstractLet A1,…,Ak,C,PϵB(H), the Banach algebra of all bounded linear operators on a complex Hilber...
AbstractThis paper concerns the structure of the predual of certain singly generated operator algebr...
There are many different ways to subdivide the spectrum of a bounded linear operator; some of them a...
AbstractA complete description is given of the eigenvalues of the matrix A associated with absolute ...
AbstractThe Cesàro and Hölder operators of order 2 are equivalent as summability methods. However, t...
The sequence space bvp consisting of all sequences (xk) such that (xk - xk-1) in the sequence space ...
The sequence space bvp consisting of all sequences (xk) such that (xk - xk-1) in the sequence space ...
An investigation is made of the continuity, the compactness and the spectrum of the Cesàro operator...
The Fréchet sequence spaces $ces(p+)$ are very different to the Fréchet sequence spaces $ell_{p+}$,...
AbstractA continuation of [6]. Gershgorin-type estimates for spectra in Banach spaces and Hilbert sp...
AbstractLet A ∈ B(X), the algebra of all bounded linear operators on a complex Banach space X, and l...
AbstractThe main result asserts that, for any contraction T on an arbitrary Banach space X, ∥ Tn − T...
Abstract. The sequence space bvp consisting of all sequences (xk) such that (xk xk1) in the sequenc...
There are many different ways to subdivide the spectrum of a bounded linear operator; some of them a...
[EN] An investigation is made of the continuity, the compactness and the spectrum of the Ces`aro ope...
AbstractLet A1,…,Ak,C,PϵB(H), the Banach algebra of all bounded linear operators on a complex Hilber...
AbstractThis paper concerns the structure of the predual of certain singly generated operator algebr...
There are many different ways to subdivide the spectrum of a bounded linear operator; some of them a...
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