Results 81 to 90 of about 1,127,143 (202)

On quasihyperbolic geodesics in Banach spaces

open access: yesAnnales Academiae Scientiarum Fennicae Mathematica, 2014
14 pages, 4 ...
Rasila Antti   +2 more
openaire   +6 more sources

Existence of local fractional integral equation via a measure of non-compactness with monotone property on Banach spaces

open access: yesAdvances in Difference Equations, 2020
In this paper, we discuss fixed point theorems for a new χ-set contraction condition in partially ordered Banach spaces, whose positive cone K $\mathbb{K}$ is normal, and then proceed to prove some coupled fixed point theorems in partially ordered Banach
Hemant Kumar Nashine   +3 more
doaj   +1 more source

A Remark for the Hyers–Ulam Stabilities on n-Banach Spaces

open access: yesAxioms, 2020
In this article, we deal with stabilities of several functional equations in n-Banach spaces. For a surjective mapping f into a n-Banach space, we prove the generalized Hyers–Ulam stabilities of the cubic functional equation and the quartic functional ...
Jaeyoo Choy, Hahng-Yun Chu, Ahyoung Kim
doaj   +1 more source

When weak convergence in von Neumann algebras implies almost uniform convergence?

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 9, September 2026.
Abstract We show that weak sequential convergence in a semifinite von Neumann algebra M$\mathcal {M}$ equipped with a faithful normal semifinite trace τ$\tau$ implies almost uniform convergence if and only if M$\mathcal {M}$ is of type Ifin$\mathrm{I}_{\rm fin}$ with τ(1)<∞;$\tau (\mathbf {1})<\infty;$ and that weak sequential convergence in a finite ...
Yerlan Nessipbayev   +2 more
wiley   +1 more source

Ostrowski-Type Inequalities for Functions of Two Variables in Banach Spaces

open access: yesMathematics
In this paper, we offer Ostrowski-type inequalities that extend the findings that have been proven for functions of one variable with values in Banach spaces, conducted in a remarkable study by Dragomir, to functions of two variables containing values in
Muhammad Amer Latif   +1 more
doaj   +1 more source

Stochastic processes on totally disconnected topological groups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
Stochastic processes on totally disconnected topological groups are investigated. In particular, they are considered for diffeomorphism groups and loop groups of manifolds on non-Archimedean Banach spaces.
S. V. Ludkovsky
doaj   +1 more source

A proof of Esterle's conjecture on negative powers of Hilbert‐space contractions

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 9, September 2026.
Abstract We establish the following result, confirming a conjecture of Jean Esterle. For each closed subset E$E$ of the unit circle of Lebesgue measure zero, there exists a positive sequence un→∞$u_n\rightarrow \infty$ with the following property: If T$T$ is a contraction on a Hilbert space such that σ(T)⊂E$\sigma (T)\subset E$ and ∥T−n∥=O(un)$\Vert T^{
Thomas Ransford
wiley   +1 more source

The Weak Topologies of Banach Spaces [PDF]

open access: yesProceedings of the National Academy of Sciences, 1939
Not ...
openaire   +3 more sources

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

Equidistribution in 2‐nilpotent Polish groups and triple restricted sumsets

open access: yesJournal of the London Mathematical Society, Volume 114, Issue 3, September 2026.
Abstract The aim of this paper is to establish a Ratner‐type equidistribution theorem for orbits on homogeneous spaces associated with 2$\hskip.001pt 2$‐nilpotent locally compact Polish groups under the action of a countable discrete abelian group.
Ethan Ackelsberg, Asgar Jamneshan
wiley   +1 more source

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