Results 31 to 40 of about 1,097,522 (236)

Extending homeomorphisms in compactification of Fréchet spaces [PDF]

open access: yesProceedings of the American Mathematical Society, 1970
In the study of extending homeomorphisms in the compactification of Fr6chet spaces into the Hilbert cube Q, it is shown that for a given homeomorphism f of s onto itself and a closed subset K of s satisfying property Z in s, there is a homeomorphism g of s onto itself such that gfg-' ,g(K) extends to a homeomorphism of Q onto Q.
openaire   +2 more sources

The compact approximation property for spaces of holomorphic mappings on Frechet spaces

open access: yes, 2021
In this paper, the compact approximation property on Frechet spaces is characterized in terms of holomorphic mappings. We show that a Frechet space E has the compact approximation property if and only if every holomorphic mapping on a balanced open ...
Caliskan, E.   +3 more
core   +1 more source

Frechet spaces of general Dirichlet series [PDF]

open access: yes, 2021
[EN] Inspired by a recent article on Frechet spaces of ordinary Dirichlet series Sigma a(n)n(-s) due to J. Bonet, we study topological and geometrical properties of certain scales of Frechet spaces of general Dirichlet spaces Sigma a(n)e(-lambda ns ...
Sevilla Peris, Pablo   +4 more
core   +1 more source

ℐ𝒦-SEQUENTIAL AND ℐ𝒦-FRÉCHET-URYSOHN SPACES

open access: yesПроблемы анализа
Notions of ℐ^𝒦-Fréchet-Urysohn and ℐ^𝒦-sequential spaces are studied by letting ideals ℐ, 𝒦 of subsets of natural numbers to play measurable role in the well-established concepts of Fréchet Urysohn and sequential spaces. Relation among those spaces in
Sima Roy, Manoranjan Singha
doaj   +1 more source

Concrete functors that respect initiality and finality

open access: yesApplied General Topology, 2023
We study concrete endofunctors of the category of convergence spaces and continuous maps that send initial maps to initial maps or final maps to final maps. The former phenomenon turns out to be fairly common while the latter is rare.
Frédéric Mynard
doaj   +1 more source

The existence of a factorized unbounded operator between Frechet spaces [PDF]

open access: yes, 2020
For locally convex spaces E and F, the continuous linear map T : E -> F is called bounded if there is a zero neighborhood U of E such that T(U) is bounded in F. Our main result is that the existence of an unbounded operator T between Frechet spaces E and
Yurdakul, Murat, Kizgut, Ersin
core   +1 more source

Controllability of mild solutions for fractional neutral evolution equations with state-dependent delay [PDF]

open access: yesArchives of Control Sciences
This paper examines the controllability of mild solutions for a specific class of neutral fractional evolution equations with finite state-dependent delays in Fréchet space, employing Caputo fractional derivatives.
Selma Baghli-Bendimerad   +1 more
doaj   +1 more source

AI‐BioMech: Deep Learning Prediction of Mechanical Behavior in Aperiodic Biological Cellular Materials

open access: yesAdvanced Intelligent Discovery, EarlyView.
AI‐BioMech is a deep learning framework that predicts the mechanical behavior of biological cellular materials directly from 2D images. By replacing traditional finite element analysis with semantic segmentation, it identifies stress and strain distributions with 99% accuracy, offering a high‐speed, scalable alternative for analyzing complex, aperiodic
Haleema Sadia   +2 more
wiley   +1 more source

Preferential trading in agriculture: New insights from a structural gravity analysis and machine learning

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Preferential trade agreements (PTAs) contain various non‐tariff provisions, yet identifying their trade effects remains challenging because these commitments are high‐dimensional and strongly correlated within agreements. We estimated a theory‐consistent structural gravity model with domestic flows for 26 agricultural subsectors over 1988–2017
Dongin Kim, Sandro Steinbach
wiley   +1 more source

Fréchet Universality and Completion for F-Metric Spaces: A Generalized Metric Framework

open access: yesJournal of Mathematics
In this paper, we investigate the existence of completions and Fréchet universal spaces within the framework of F-metric spaces. We show that every F-metric space has a completion and that, for any family of F-metric spaces, there exists a Fréchet ...
Nima Norouzi-Chenari   +2 more
doaj   +1 more source

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