И EXTRACTA MATHEMATICAE Vol. 12, Num. 1, 87-91 (1997) Meromorphic Functional Calculus and Local S... more И EXTRACTA MATHEMATICAE Vol. 12, Num. 1, 87-91 (1997) Meromorphic Functional Calculus and Local Spectral Theory Teresa Bermúdez Departamento de Análisis Matemático, Universidad de La Laguna, 38271-La Laguna, Spain (Research announcement presented by M. ...
The problem we are concerned with in this research announcement is the algebraic characterization... more The problem we are concerned with in this research announcement is the algebraic characterization of chain-finite operators (global case) and of locally chain-finite operators (local case).
In this paper we collect some results about arithmetic progressions of higher order, also called ... more In this paper we collect some results about arithmetic progressions of higher order, also called polynomial sequences. Those results are applied to $(m,q)$-isometric maps.
ABSTRACT We show that there exist a linear m-isometry on a Hilbert space which is not continuous,... more ABSTRACT We show that there exist a linear m-isometry on a Hilbert space which is not continuous, and a continuous m-isometry on a Hilbert space which is not affine. Further we define (m,q)-isometries on metric spaces and prove their basic properties.
И EXTRACTA MATHEMATICAE Vol. 12, Num. 1, 87-91 (1997) Meromorphic Functional Calculus and Local S... more И EXTRACTA MATHEMATICAE Vol. 12, Num. 1, 87-91 (1997) Meromorphic Functional Calculus and Local Spectral Theory Teresa Bermúdez Departamento de Análisis Matemático, Universidad de La Laguna, 38271-La Laguna, Spain (Research announcement presented by M. ...
The problem we are concerned with in this research announcement is the algebraic characterization... more The problem we are concerned with in this research announcement is the algebraic characterization of chain-finite operators (global case) and of locally chain-finite operators (local case).
In this paper we collect some results about arithmetic progressions of higher order, also called ... more In this paper we collect some results about arithmetic progressions of higher order, also called polynomial sequences. Those results are applied to $(m,q)$-isometric maps.
ABSTRACT We show that there exist a linear m-isometry on a Hilbert space which is not continuous,... more ABSTRACT We show that there exist a linear m-isometry on a Hilbert space which is not continuous, and a continuous m-isometry on a Hilbert space which is not affine. Further we define (m,q)-isometries on metric spaces and prove their basic properties.
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