Results 51 to 60 of about 166,394,816 (126)

On Mean Ergodic Operators

open access: yes, 2010
Aspects of the theory of mean ergodic operators and bases in Fréchet spaces were recently developed in [A.A. Albanese, J. Bonet, W.J. Ricker, Mean ergodic operators i Fréchet spaces, Ann. Acad. Sci. Math. Fenn. Math. 34 (2009), 1-36].
ALBANESE, Angela Anna   +5 more
core  

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

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

Decay of correlations and limit theorems for random intermittent maps

open access: yesJournal of the London Mathematical Society, Volume 114, Issue 3, September 2026.
Abstract In this paper, we revisit the problem of polynomial memory loss and the central limit theorem (CLT) for time‐dependent LSV maps. More precisely, we show that for random LSV maps corresponding to a random parameter β(·)$\beta (\cdot)$ we obtain quenched memory loss, decay of correlations, CLTs with rates, moment bounds, and almost sure ...
Davor Dragičević   +2 more
wiley   +1 more source

Furstenberg’s ergodic approach to Szemerédi’s Theorem [PDF]

open access: yes
openThis thesis presents the ergodic proof of Szemerédi’s Theorem, introducing the fundamental tools of ergodic theory through meaningful examples.This thesis presents the ergodic proof of Szemerédi’s Theorem, introducing the fundamental tools of ...
SARTORE, DAVIDE
core  

On Elliott's conjecture and applications

open access: yesProceedings of the London Mathematical Society, Volume 133, Issue 3, September 2026.
Abstract Let f:N→D$f:\mathbb {N}\rightarrow \mathbb {D}$ be a multiplicative function. Under the merely necessary assumption that f$f$ is nonpretentious (in the sense of Granville and Soundararajan), we show that for any pair of distinct integer shifts h1,h2$h_1,h_2$, the two‐point correlation 1x∑n⩽xf(n+h1)f¯(n+h2)$$\begin{equation*} \frac{1}{x}\sum _ ...
Oleksiy Klurman   +2 more
wiley   +1 more source

Ergodic properties of operators in some semi-Hilbertian spaces

open access: yes, 2012
This article deals with linear operators T on a complex Hilbert space , which are bounded with respect to the seminorm induced by a positive operator A on .
Suciu, Laurian   +2 more
core   +1 more source

Some Inequalities for Commutators of Bounded Linear Operators in Hilbert Spaces [PDF]

open access: yes, 2008
Some new inequalities for commutators that complement and in some instances improve recent results obtained by F. Kittaneh in 'Inequalities for commutators of positive operators' (2007) and 'Norm inequalities for commutators of Hilbert space operators ...
Dragomir, Sever S
core   +1 more source

Controlling the risky fraction process with an ergodic criterion [PDF]

open access: yes
This article examines a tracking problem, similar to the one presented in Pliska and Suzuki (Quantitative Finance, 2004): an investor would keep constant proportions of her wealth in different assets if markets were frictionless; however, in the presence
Yiannis Kamarianakis   +1 more
core  

Dynamical determinants and their applications [PDF]

open access: yes
This thesis is concerned with situations where we can define trace-class transfer oper- ators, and extract useful information from their determinants. The first topic is on Lyapunov exponents of random products of matrices.
Felton, Philip
core  

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