Results 171 to 180 of about 82,121,457 (200)

The Double-Layer Potential for Spectral Constants Revisited. [PDF]

open access: yesIntegr Equ Oper Theory
Schwenninger FL, de Vries J.
europepmc   +1 more source

Bielecki-Ulam stability of a hammerstein-type difference system. [PDF]

open access: yesMethodsX
Rahmat G   +5 more
europepmc   +1 more source
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Weyl Type Theorem for Bounded Linear Operator and Its Functional Calculus

Acta Mathematica Sinica, English Series, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Feng, Gao Hui Zi, Li, Peng Tong
openaire   +2 more sources

Functional calculus estimates for Tadmor–Ritt operators [PDF]

open access: yesJournal of Mathematical Analysis and Applications, 2016
We show H∞-functional calculus estimates for Tadmor-Ritt operators (also known as Ritt operators), which generalize and improve results by Vitse. These estimates are in conformity with the best known power-bounds for Tadmor-Ritt operators in terms of the
Felix Schwenninger
exaly   +3 more sources

Time-frequency transfer function calculus (symbolic calculus) of linear time-varying systems (linear operators) based on a generalized underspread theory

Journal of Mathematical Physics, 1998
We introduce a generalized concept of underspread linear time-varying systems (linear operators) which contains a previous definition as a special case. We show that an existing approximate transfer function calculus (symbolic calculus) can be extended to this wider and practically more relevant class of underspread operators.
Matz, Gerald, Hlawatsch, Franz
openaire   +2 more sources

A new functional calculus for noncommuting operators [PDF]

open access: yesJournal of Functional Analysis, 2008
. In this paper we use the notion of slice monogenic functions introduced in a paper by Colombo, Sabadini and Struppa (see Israel J. Math. 2009) to define a new functional calculus for an n-tuple T=(T_1,..., T_n) of not necessarily commuting operators ...
Daniele Struppa   +2 more
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Borel functional calculus for quaternionic normal operators

open access: yesJournal of Mathematical Physics, 2017
In this article, we give an approach to Borel functional calculus for quaternionic normal operators, which are not necessarily bounded. First, we establish the definition of functional calculus for a subclass of quaternion valued Borel functions, and ...
Ramesh Golla
exaly   +2 more sources

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