Add to ORKGConsiglio Nazionale delle Ricerche - Biblioteca Centrale - P.le Aldo Moro, 7, Rome / CNR - Consiglio Nazionale delle RichercheSIGLEITItal
We thank Maurizio Porfiri for pointing out a missing assumption in Proposition 4.3.In this paper, we...
AbstractWhen A∈B(H) and B∈B(K) are given, we denote by MC the operator acting on the infinite dimens...
We thank Maurizio Porfiri for pointing out a missing assumption in Proposition 4.3.In this paper, we...
AbstractIn this paper we investigate perturbations of the regular spectrum of an upper triangular op...
AbstractWhen A∈B(H) and B∈B(K) are given, we denote by MC the operator acting on the infinite dimens...
The fine spectra of lower triangular triple-band matrices have been examined by several authors (e.g...
AbstractThis paper deals with the spectra of matrices similar to infinite tridiagonal Toeplitz matri...
AbstractThe fine spectra of lower triangular double-band matrices have been examined by several auth...
In this paper, we study the unbounded upper triangular operator matrix with diagonal domain. Some su...
This paper is devoted to the perturbation theory for defective matrices. We consider the asymptotic ...
AbstractWe discuss the following problem: How can the spectrum σ(A) of a linear operator A be change...
In this work, we determine the fine spectrum of the matrix operator (Delta(2)(uvw))(t) which is defi...
AbstractLet MC denote a 2×2 upper triangular operator matrix of the form MC=AC0B, which is acting on...
This paper considers N ×N matrices of the form Aγ = A + γB, where A is self-adjoint, γ ∈ C and B is ...
We thank Maurizio Porfiri for pointing out a missing assumption in Proposition 4.3.In this paper, we...
We thank Maurizio Porfiri for pointing out a missing assumption in Proposition 4.3.In this paper, we...
AbstractWhen A∈B(H) and B∈B(K) are given, we denote by MC the operator acting on the infinite dimens...
We thank Maurizio Porfiri for pointing out a missing assumption in Proposition 4.3.In this paper, we...
AbstractIn this paper we investigate perturbations of the regular spectrum of an upper triangular op...
AbstractWhen A∈B(H) and B∈B(K) are given, we denote by MC the operator acting on the infinite dimens...
The fine spectra of lower triangular triple-band matrices have been examined by several authors (e.g...
AbstractThis paper deals with the spectra of matrices similar to infinite tridiagonal Toeplitz matri...
AbstractThe fine spectra of lower triangular double-band matrices have been examined by several auth...
In this paper, we study the unbounded upper triangular operator matrix with diagonal domain. Some su...
This paper is devoted to the perturbation theory for defective matrices. We consider the asymptotic ...
AbstractWe discuss the following problem: How can the spectrum σ(A) of a linear operator A be change...
In this work, we determine the fine spectrum of the matrix operator (Delta(2)(uvw))(t) which is defi...
AbstractLet MC denote a 2×2 upper triangular operator matrix of the form MC=AC0B, which is acting on...
This paper considers N ×N matrices of the form Aγ = A + γB, where A is self-adjoint, γ ∈ C and B is ...
We thank Maurizio Porfiri for pointing out a missing assumption in Proposition 4.3.In this paper, we...
We thank Maurizio Porfiri for pointing out a missing assumption in Proposition 4.3.In this paper, we...
AbstractWhen A∈B(H) and B∈B(K) are given, we denote by MC the operator acting on the infinite dimens...
We thank Maurizio Porfiri for pointing out a missing assumption in Proposition 4.3.In this paper, we...