Results 1 to 10 of about 5,164,048 (315)

Dynamics of multivalued linear operators

open access: yesOpen Mathematics, 2017
We introduce several notions of linear dynamics for multivalued linear operators (MLO’s) between separable Fréchet spaces, such as hypercyclicity, topological transitivity, topologically mixing property, and Devaney chaos.
Chen Chung-Chuan   +3 more
doaj   +2 more sources

Interpolation Conditions for Linear Operators and Applications to Performance Estimation Problems [PDF]

open access: yesSIAM Journal on Optimization, 2023
The Performance Estimation Problem methodology makes it possible to determine the exact worst-case performance of an optimization method. In this work, we generalize this framework to first-order methods involving linear operators.
Nizar Bousselmi   +2 more
semanticscholar   +1 more source

Convergence Rates for Learning Linear Operators from Noisy Data [PDF]

open access: yesSIAM/ASA J. Uncertain. Quantification, 2021
This paper studies the learning of linear operators between infinite-dimensional Hilbert spaces. The training data comprises pairs of random input vectors in a Hilbert space and their noisy images under an unknown self-adjoint linear operator.
M. Hoop   +3 more
semanticscholar   +1 more source

Linear operators with vector masks in digital image processing problems

open access: yesКомпьютерная оптика, 2023
The paper shows that it is expedient to use vector masks for solving some types of digital image processing problems. The main advantage of vector masks compared to matrix masks is that they reduce the computational complexity of algorithms while ...
A.I. Novikov, A.V. Pronkin
doaj   +1 more source

λ-Commuting of bounded linear operators on ultrametric Banach spaces and determinant spectrum of ultrametric matrices

open access: yesTopological Algebra and its Applications, 2023
In this article, we study the λ\lambda -commuting of bounded linear operators on ultrametric Banach spaces and the determinant spectrum of ultrametric matrices.
Ettayb Jawad
doaj   +1 more source

Recurrent Linear Operators [PDF]

open access: yesComplex Analysis and Operator Theory, 2013
38 pages; final version, incorporates referee's report; to appear in Complex Anal.
Costakis, George   +2 more
openaire   +4 more sources

The task of integral geometry with measure induction [PDF]

open access: yesКомпьютерные исследования и моделирование, 2011
A new statement of Integral Geometry problem where the image of function in each point is taken as an integral with respect to measure which depends on the point is suggested. Such Measure System is named Measure Induction.
A. V. Koganov
doaj   +1 more source

Decomposition of Linear Operators on Pre-Euclidean Spaces by Means of Graphs

open access: yesMathematics, 2023
In this work, we study a linear operator f on a pre-Euclidean space V by using properties of a corresponding graph. Given a basis B of V, we present a decomposition of V as an orthogonal direct sum of certain linear subspaces {Ui}i∈I, each one admitting ...
Hani Abdelwahab   +3 more
doaj   +1 more source

Simple eigenvectors of unbounded operators of the type “normal plus compact” [PDF]

open access: yesOpuscula Mathematica, 2015
The paper deals with operators of the form \(A=S+B\), where \(B\) is a compact operator in a Hilbert space \(H\) and \(S\) is an unbounded normal one in \(H\), having a compact resolvent.
Michael Gil'
doaj   +1 more source

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