Results 91 to 100 of about 1,163,773 (213)

RETRO K-BANACH FRAMES IN BANACH SPACES

open access: yesPoincare Journal of Analysis and Applications, 2018
Summary: The notions of $K$-frame and atomic system in Hilbert spaces were recently introduced by \textit{L. Găvruţa} [Appl. Comput. Harmon. Anal. 32, No. 1, 139--144 (2012; Zbl 1230.42038)]. In this paper, we extend these notions to a Banach space setting, define $K$-retro Banach frames in Banach spaces and observe that $K$-retro Banach frame is a ...
Shekhar, Chander   +2 more
openaire   +2 more sources

A Note on Local Polynomial Regression for Time Series in Banach Spaces

open access: yesJournal of Time Series Analysis, Volume 47, Issue 6, Page 1124-1138, November 2026.
ABSTRACT This work extends local polynomial regression to Banach space‐valued time series for estimating smoothly varying means and their derivatives in non‐stationary data. The asymptotic properties of both the standard and bias‐reduced Jackknife estimators are analyzed under mild moment conditions, establishing their convergence rates.
Florian Heinrichs
wiley   +1 more source

Fixed Point Approximation of Generalized Nonexpansive Mappings in Hyperbolic Spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2015
We prove strong and Δ-convergence theorems for generalized nonexpansive mappings in uniformly convex hyperbolic spaces using S-iteration process due to Agarwal et al.
Jong Kyu Kim   +4 more
doaj   +1 more source

Invertible Operators on Banach Spaces [PDF]

open access: yesFormalized Mathematics, 2019
Summary In this article, using the Mizar system [2], [1], we discuss invertible operators on Banach spaces. In the first chapter, we formalized the theorem that denotes any operators that are close enough to an invertible operator are also invertible by using the property of Neumann series.
openaire   +2 more sources

Johnson–Schwartzman gap labeling for metric and discrete decorated graphs

open access: yesJournal of the London Mathematical Society, Volume 114, Issue 5, November 2026.
Abstract We study Schrödinger operators on metric and discrete decorated graphs. The values taken by the integrated density of states (IDS) on spectral gaps are called gap labels. A natural question is which gap labels can occur. We answer this for graphs arising from uniquely ergodic one‐dimensional dynamical systems by proving Johnson–Schwartzman gap‐
Ram Band, Gilad Sofer
wiley   +1 more source

Marine Macroalgae as a Safe Healthy Food While Meeting Food Security Challenges Arising From Climate Changes

open access: yesFood Safety and Health, Volume 4, Issue 4, Page 783-804, October 2026.
Planned harvesting and processing of marine macroalgae could meet future global food needs and mitigate fuel‐originated carbon dioxide responsible for climate change. Microalgal foods are nutritious and safe. The utilization of macroalgae would avoid environmental problems arising from the release of overgrowing macroalgae caused by heatwaves, which ...
Upali Samarajeewa
wiley   +1 more source

On Weakly Lindelof Banach Spaces

open access: yesRocky Mountain Journal of Mathematics, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Argyros, S., Mercourakis, S.
openaire   +4 more sources

Curved RUM spectra of periodic frameworks

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 10, October 2026.
Abstract The rigid unit mode (RUM) spectrum records the phases at which a periodic (or crystal) framework admits a phase‐periodic infinitesimal motion. This plays a central role in the geometric rigidity of crystal frameworks, with applications in crystallography and materials science.
Antonio Acuaviva   +3 more
wiley   +1 more source

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