Results 91 to 100 of about 66,942 (205)

$M$-operators on partially ordered Banach spaces

Advances in Operator Theory, 2019
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‎Kalauch, A., ‎Lavanya, S., ‎Sivakumar, K. C.   +2 more
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Degree theory for 4‐dimensional asymptotically conical gradient expanding solitons

Communications on Pure and Applied Mathematics, Volume 79, Issue 5, Page 1151-1298, May 2026.
Abstract We develop a new degree theory for 4‐dimensional, asymptotically conical gradient expanding solitons. Our theory implies the existence of gradient expanding solitons that are asymptotic to any given cone over S3$S^3$ with non‐negative scalar curvature. We also obtain a similar existence result for cones whose link is diffeomorphic to S3/Γ$S^3/\
Richard H. Bamler, Eric Chen
wiley   +1 more source

Operators on Tensor Products of Banach Spaces [PDF]

Transactions of the American Mathematical Society, 1972
The present paper is a study of operators on tensor products of Banach spaces with the notion of maximal extensions introduced by G. Ki5the such that the closure of a closable operator is its unique maximal extension. For a class of such operators the spectral mapping theorem is established.
openaire   +2 more sources

Identification and Estimation of Large Network Games with Private Link Information

International Economic Review, Volume 67, Issue 2, Page 411-432, May 2026.
ABSTRACT We study the identification and estimation of large network games in which individuals choose continuous actions while holding private information about their links and payoffs. Extending the framework of Galeotti et al., we build a tractable empirical model of such network games and show that the parameters in individual payoffs are ...
Hülya Eraslan, Xun Tang
wiley   +1 more source

Monitoring panels of sparse functional data

Journal of Time Series Analysis, Volume 47, Issue 3, Page 660-674, May 2026.
Panels of random functions are common in applications of functional data analysis. They often occur when sequences of functions are observed at a number of different locations. We propose a methodology to monitor for structural breaks in such panels and to identify the changing components with statistical certainty.
Tim Kutta, Agnieszka Jach, Piotr Kokoszka   +2 more
wiley   +1 more source

Matrix Mappings on the Domains of Invertible Matrices

Journal of Function Spaces and Applications, 2013
We focus on sequence spaces which are matrix domains of Banach sequence spaces. We show that the characterization of a random matrix operator , where and are matrix domains with invertible matrices and , can be reduced to the characterization of the ...
Muhammed Altun
doaj   +1 more source

The Classical Integral Operators in Weighted Lorentz Spaces with Variable Exponent. [PDF]

In this paper the Lorentz spaces with variable exponent are introduced. These Banach function spaces are defined on the base of variable Lebesgue spaces. Boundedness of classical integral operators are proved in variable Lorentz spaces.
D.M. Israfilov, N.P. Tuzkaya
core   +1 more source

Dissipative operators on Banach spaces

Journal of Functional Analysis, 2007
A bounded linear operator \(T\) on a Banach space \(X\) is said to be dissipative if \(\| \exp(tT)\| \leq 1\) for all \(t \geq 0\), and is said to be Hermitian if \(\| \exp(itT)\| = 1\) for all \(t \in \mathbb R\). For a dissipative operator, it is proved that \[ \lim_{t \to \infty}\| \exp(tT)T\| = \sup\{| \lambda| : \lambda\in\sigma(T)\cap i\mathbb R \
openaire   +3 more sources

Isomorphisms of algebras of symmetric functions on spaces $\ell_p$

Математичні Студії
The work is devoted to the study of algebras of entire symmetric functions on some Banach spaces of sequences. A function on a vector space is called symmetric with respect to some fixed group $G$ of operators acting on this space, or $G$-symmetric, if ...
T. V. Vasylyshyn
doaj   +1 more source

Some Bounded Linear Integral Operators and Linear Fredholm Integral Equations in the Spaces Hα,δ,γ((a,b)×(a,b),X) and Hα,δ((a,b),X)

Abstract and Applied Analysis, 2013
The spaces Hα,δ,γ((a,b)×(a,b),ℝ) and Hα,δ((a,b),ℝ) were defined in ((Hüseynov (1981)), pages 271–277). Some singular integral operators on Banach spaces were examined, (Dostanic (2012)), (Dunford (1988), pages 2419–2426 and (Plamenevskiy (1965)).
İsmet Özdemir, Ali M. Akhmedov, Ö. Faruk Temizer   +2 more
doaj   +1 more source