Results 21 to 30 of about 55 (52)

Shift Оperators [PDF]

open access: yes, 2015
Shift operators play an important role in different areas of Mathematics such as Operator Theory, Dynamical Systems and Complex Analysis. In these lectures we discuss basic properties of these operators.
Anoussis, M. S.
core  

Idempotent vector spaces and their linear transformations

open access: yesConcrete Operators
This article extends topics about linear algebra and operator theoretic linear transformations on complex vector spaces to those on bicomplex spaces.
Johnston William, Wahl Rebecca G.
doaj   +1 more source

Linear relations and the Kronecker canonical form [PDF]

open access: yes, 2015
We show that the Kronecker canonical form (which is a canonical decomposition for pairs of matrices) is the representation of a linear relation in a finite dimensional space. This provides a new geometric view upon the Kronecker canonical form.
Trunk, Carsten   +2 more
core  

An overview of cyclicity in Dirichlet-type spaces in the unit ball

open access: yesConcrete Operators
We shall discuss the characterization of cyclicity of polynomials in Dirichlet-type spaces in the Euclidean unit ball of Cn ${\mathbb{C}}^{n}$ which remains an open problem.
Vavitsas Dimitrios
doaj   +1 more source

Standard triangularization of semigroups of non-negative operators

open access: yes
CODEN: JFUAAW; MRCLASS: 47D03 (47A15 47B38 47B65); MRNUMBER: MR2108364 (2005m:47086); MRREVIEWER: Roman Drnov{\v{s}}ekSource type: Electronic ...

core   +1 more source

Ultraweakly closed algebras and preannihilators

open access: yes
CODEN: PAMYAR; MRCLASS: 47D25 (47A15 47D27); MRNUMBER: MR1025280 (91c:47089); MRREVIEWER: Edward AzoffSource type: Electronic ...

core   +1 more source

Statistical evidence of tax fraud on the carbon allowances market [PDF]

open access: yes, 2010
URL des Documents de travail : http://ces.univ-paris1.fr/cesdp/CESFramDP2010 Classification AMS : 47A15, 46A32, 47D20.Documents de travail du Centre d'Economie de la Sorbonne 2010.69 - ISSN : 1955-611XThe aim of this paper is to show evidence and to ...
Guegan, Dominique   +2 more
core   +1 more source

Perturbation Bounds For Isotropic Invariant Subspaces Of Skew-Hamiltonian Matrices

open access: yes, 2008
We investigate the behavior of isotropic invariant subspaces of skew-Hamiltonian matrices under structured perturbations. It is shown that finding a nearby subspace is equivalent to solving a certain quadratic matrix equation.
Daniel Kressner
core  

Comments on the cosmic convergence of nonexpansive maps. [PDF]

open access: yesJ Fixed Point Theory Appl, 2021
Gutiérrez AW, Karlsson A.
europepmc   +1 more source

Some results on b-AM-compact operators

open access: yes, 2018
We show that for positive operator B : E → E on Banach lattices, if there exists a positive operator S : E → E such that:1.SB ≤ BS;2.S is quasinilpotent at some x0 > 0; 3.S dominates a non-zero b-AM-compact operator, then B has a non-trivial closed ...
Cheng, Na
core  

Home - About - Disclaimer - Privacy