Results 21 to 30 of about 162,152 (315)

Recurrence and mixing recurrence of multiplication operators

open access: yesMathematica Bohemica, 2023
Summary: Let \(X\) be a Banach space, \(\mathcal{B}(X)\) the algebra of bounded linear operators on \(X\) and \((J,\|{\cdot}\|_{J})\) an admissible Banach ideal of \(\mathcal{B}(X)\). For \(T\in\mathcal{B}(X)\), let \(L_{J,T}\) and \(R_{J,T}\in\mathcal{B}(J)\) denote the left and right multiplication defined by \(L_{J,T}(A)=TA\) and \(R_{J,T}(A)=AT ...
Mohamed Amouch, Hamza Lakrimi
openaire   +2 more sources

Heart Rate Variability and Clinical Features as Predictors of Atrial Fibrillation Recurrence After Catheter Ablation: A Pilot Study

open access: yesFrontiers in Physiology, 2021
Single-procedure catheter ablation success rate is as low as 52% in atrial fibrillation (AF) patients. This study evaluated the feasibility of using clinical data and heart rate variability (HRV) features extracted from an implantable cardiac monitor ...
Javier Saiz-Vivo   +5 more
doaj   +1 more source

A generalisation of two partition theorems of Andrews [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2015
In 1968 and 1969, Andrews proved two partition theorems of the Rogers-Ramanujan type which generalise Schur’s celebrated partition identity (1926). Andrews’ two generalisations of Schur’s theorem went on to become two of the most influential results in ...
Jehanne Dousse
doaj   +1 more source

The Cube Recurrence [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2004
We construct a combinatorial model that is described by the cube recurrence, a quadratic recurrence relation introduced by Propp, which generates families of Laurent polynomials indexed by points in ${\Bbb Z}^3$. In the process, we prove several conjectures of Propp and of Fomin and Zelevinsky about the structure of these polynomials, and we obtain a ...
Gabriel D. Carroll, David E Speyer
openaire   +3 more sources

Recurrence and Frequencies

open access: yes, 2023
Given an infinite word with values in a finite alphabet that admit frequencies for all its factors, the smallest frequency function associates with a given positive integer the smallest frequency for factors of this length, and the recurrence function measures the gaps between successive occurrences of factors.
Berthé, Valérie, Mimouni, Ahmed
openaire   +1 more source

Recurrences

open access: yes, 2022
In this book chapter, we present some techniques for solving recurrences. There are five efficient methods for solving recurrences: the guess-and-confirm method, the iteration method, the recursion-tree method, the generating functions method, and the ...
Alzalg, Baha
core   +1 more source

Under-recurrence in the Khintchine recurrence theorem [PDF]

open access: yesIsrael Journal of Mathematics, 2017
18 pages. Referee's comments incorporated.
Boshernitzan, Michael   +2 more
openaire   +2 more sources

Observational Study for Adverse Effects and Discontinuation with Long-Term Post-Operative Hormonal Treatment for Endometriosis in Real-World Practice [PDF]

open access: yesKosin Medical Journal, 2021
Objectives To evaluate the side effects and causes of discontinuation of either combined oral contraceptives or dienogest (DNG) used to prevent recurrence in patients with surgically confirmed endometriosis.
In Hye Kim   +5 more
doaj   +1 more source

Expression of DNMTs and H3K9ac in Ameloblastoma and Ameloblastic Carcinoma

open access: yesFrontiers in Oral Health, 2021
Objectives: DNA methyltransferases (DNMTs) and the histone modification H3K9ac are epigenetic markers. This study aimed to describe the immunohistochemical expression of DNMT1, DNMT3A, DNMT3B, and H3K9ac in the dental follicle (DF), ameloblastoma (AME ...
Gleyson Kleber do Amaral-Silva   +9 more
doaj   +1 more source

A family of linearizable recurrences with the Laurent property [PDF]

open access: yes, 2014
We consider a family of non-linear recurrences with the Laurent property. Although these recurrences are not generated by mutations in a cluster algebra, they fit within the broader framework of Laurent phenomenon algebras, as introduced recently by Lam ...
Ward, Chloe, Hone, Andrew N.W.
core   +1 more source

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