Results 81 to 90 of about 17,630 (186)

Supercyclic Weighted Translations on Quotient Spaces

Axioms
In this note, we give the sufficient and necessary condition for weighted translations on the Orlicz spaces of quotient spaces to be supercyclic. By applying this characterization of supercyclicity, the descriptions of hypercyclicity, topological mixing ...
AliReza Bagheri Salec, Chung-Chuan Chen, Seyyed Mohammad Tabatabaie, Zahra Saeed Abdulazeez Alfaikhrani   +3 more
doaj   +1 more source

Non‐amenability of mapping class groups of infinite‐type surfaces and graphs

Bulletin of the London Mathematical Society, Volume 58, Issue 4, April 2026.
Abstract This paper completely determines the non‐amenability of the mapping class groups of infinite‐type surfaces, the mapping class groups of locally finite infinite graphs of higher ranks, gives an example of non‐amenable stabiliser of a point at infinity of a coarsely bounded generated hyperbolic Polish group, and exhibits a class of mapping class
Yusen Long
wiley   +1 more source

Photoinduced Topological Phase Transitions in Topological Magnon Insulators [PDF]

Scientific Reports, 2018
AbstractTopological magnon insulators are the bosonic analogs of electronic topological insulators. They are manifested in magnetic materials with topologically nontrivial magnon bands as realized experimentally in a quasi-two-dimensional (quasi-2D) kagomé ferromagnet Cu(1–3, bdc), and they also possess protected magnon edge modes.
openaire   +3 more sources

Development of a technical condition assessment algorithm for complex systems based on probabilistic failure estimation

Ìнформаційні технології та компʼютерна інженерія
The study aimed to provide a theoretical justification for the use of chaotic dynamical systems to enhance the strength of cryptographic keys. The research methodology was based on theoretical, comparative and critical analysis of scientific sources to ...
V. Lukhanin
doaj   +1 more source

On Local Aspects of Topological Transitivity and Weak Mixing in Set-Valued Discrete Systems

Discrete Dynamics in Nature and Society, 2013
Blanchard and Huang introduced the notion of weakly mixing subset, and Oprocha and Zhang gave the concept of transitive subset and studied its basic properties. In this paper our main goal is to discuss the weakly mixing subsets and transitive subsets in
Lei Liu
doaj   +1 more source

Noncommutative polygonal cluster algebras

Journal of the London Mathematical Society, Volume 113, Issue 4, April 2026.
Abstract We define a new family of noncommutative generalizations of cluster algebras called polygonal cluster algebras. These algebras generalize the noncommutative surfaces of Berenstein–Retakh, and are inspired by the emerging theory of Θ$\Theta$‐positivity for the groups Spin(p,q)$\mathrm{Spin}(p,q)$.
Zachary Greenberg, Dani Kaufman, Merik Niemeyer, Anna Wienhard   +3 more
wiley   +1 more source

TRANSITIVITY IN POINT-FREE TOPOLOGY [PDF]

Bulletin of the Australian Mathematical Society, 2009
AbstractThe main purpose of this paper is to develop a point-free notion of topological transitivity. First, we define transitive frame maps and transitive completely prime filters inFrm, the category of frames and frame maps. Then we discuss the relationship between these notions inFrmand the notions of topological transitive and transitive points ...
openaire   +1 more source

Sublinear bilipschitz equivalence and the quasiisometric classification of solvable Lie groups

Journal of the London Mathematical Society, Volume 113, Issue 4, April 2026.
Abstract We prove a product theorem for sublinear bilipschitz equivalences which generalizes the classical work of Kapovich, Kleiner, and Leeb on quasiisometries between product spaces. We employ our product theorem to distinguish up to quasiisometry certain families of solvable groups which share the same dimension, cone‐dimension and Dehn function ...
Ido Grayevsky, Gabriel Pallier
wiley   +1 more source

Characterization of neighborhood operators based on neighborhood relationships

Journal of Intelligent Systems
Neighborhood relationships play a pivotal role in rough set theory, addressing the limitations of equivalence relations. This article focuses on defining upper and lower approximation operators using neighborhood relationships and exploring their ...
Caixin Wei, Pei Wang, Rongrong Xu, Wanyuan Huang   +3 more
doaj   +1 more source

Graph potentials and topological quantum field theories

Proceedings of the London Mathematical Society, Volume 132, Issue 4, April 2026.
Abstract We introduce a new functional equation in birational geometry, whose solutions can be used to construct two‐dimensional topological quantum field theories (2d TQFTs), infinite‐dimensional in many interesting examples. The solutions of the equation give rise to a hierarchy of graph potentials, which, in the simplest setup, are Laurent ...
Pieter Belmans, Sergey Galkin, Swarnava Mukhopadhyay   +2 more
wiley   +1 more source