English
Related papers

Related papers: The Specification Property on the Lelek Fan

200 papers

Many continua that admit a transitive homeomorphism may be found in the literature. The circle is probably the simplest non-degenerate continuum that admits such a homeomorphism. On the other hand, most of the known examples of such…

Dynamical Systems · Mathematics 2025-08-13 Iztok Banič , Goran Erceg , Judy Kennedy , Chris Mouron , Van Nall

We describe the Lelek fan, a smooth fan whose set of end-points is dense, and the Poulsen simplex, a Choquet simplex whose set of extreme points is dense, as Fra\"{i}ss\'e limits in certain natural categories of embeddings and projections.…

General Topology · Mathematics 2016-12-20 Wiesław Kubiś , Aleksandra Kwiatkowska

We show that a natural quotient of the projective Fraisse limit of a family that consists of finite rooted trees is the Lelek fan. Using this construction, we study properties of the Lelek fan and of its homeomorphism group. We show that…

General Topology · Mathematics 2015-05-14 Dana Bartosova , Aleksandra Kwiatkowska

The Lelek fan is the only smooth fan that has a dense set of end-points. In this paper, we study non-smooth fans with this property; i.e., we construct an uncountable family of pairwise non-homeomorphic such fans. Furthermore, we prove that…

Dynamical Systems · Mathematics 2025-05-08 Iztok Banic , Goran Erceg , Ivan Jelic , Judy Kennedy

We compute the universal minimal flow of the homeomorphism group of the Lelek fan -- a one-dimensional tree-like continuum with many symmetries.

Logic · Mathematics 2017-06-29 Dana Bartošová , Aleksandra Kwiatkowska

We construct a mixing homeomorphism on the Lelek fan. We also construct a mixing homeomorphism on the Cantor fan. Then, we construct a family of uncountably many pairwise non-homeomorphic (non-)smooth fans that admit a mixing homeomorphism.

Dynamical Systems · Mathematics 2023-12-14 Iztok Banic , Goran Erceg , Judy Kennedy , Chris Mouron , Van Nall

The Lelek fan $L$ is usually constructed as a subcontinuum of the Cantor fan in such a way that the set of the end-points of $L$ is dense in $L$. It easily follows that the Lelek fan is embeddable into the Cantor fan. {It is also a…

General Topology · Mathematics 2023-05-12 Iztok Banič , Goran Erceg , Judy Kennedy

We generalize the finite version of Gowers' Ramsey theorem to multiple tetris-like operations and apply it to show that a group of homeomorphisms that preserve a "typical" linear order of branches of the Lelek fan, a compact connected…

Logic · Mathematics 2017-02-15 Dana Bartošová , Aleksandra Kwiatkowska

We study two fundamental properties of topological dynamical systems, the specification property and the initial specification property, and explore their generalizations to the broader setting of CR-dynamical systems, where the dynamics…

Dynamical Systems · Mathematics 2025-08-24 Iztok Banič , Goran Erceg , Ivan Jelić , Judy Kennedy

In search for novel nematic materials, a laterally linked H-shaped liquid crystal dimer have been synthesized and characterized. The distinct feature of the material is a very broad temperature range (about 50 oC) of the nematic phase,…

This work is devoted to switching diffusions that have two components (a continuous component and a discrete component). Different from the so-called Markovian switching diffusions, in the setup, the discrete component (the switching)…

Probability · Mathematics 2017-06-22 Dang H Nguyen , George Yin , Chao Zhu

We offer an overview of the specification property, its relatives and their consequences. We examine relations between specification-like properties and such notions as: mixing, entropy, the structure of the simplex of invariant measures,…

Dynamical Systems · Mathematics 2015-05-27 Dominik Kwietniak , Martha Łącka , Piotr Oprocha

Relationship for dynamical properties in the vicinity of fixed points between two-dimensional continuous and its positivity-preserving discretized dynamical systems is studied. Based on linear stability analysis, we reveal the conditions…

Chaotic Dynamics · Physics 2023-04-05 Shousuke Ohmori , Yoshihiro Yamazaki

Leading-edge (LE) noise is a common source of broadband noise for fans that can be suppressed using appended LE serrations. We conduct an integrated study of the morphological effects of interval, length, and inclination angle of…

Fluid Dynamics · Physics 2024-06-19 Jinxin Wang , Kenta Ishibashi , Teruaki Ikeda , Takeo Fujii , Toshiyuki Nakata , Hao Liu

We present a new time-dependent Density Functional approach to study the relaxational dynamics of an assembly of interacting particles subject to thermal noise. Starting from the Langevin stochastic equations of motion for the velocities of…

Statistical Mechanics · Physics 2016-08-31 Umberto Marini Bettolo Marconi , Pedro Tarazona

Pattern formation in uniaxial polymeric liquid crystals is studied for different dynamic closure approximations. Using the principles of mesoscopic non-equilibrium thermodynamics in a mean-field approach, we derive a Fokker-Planck equation…

Soft Condensed Matter · Physics 2015-06-05 Humberto Hijar , Diego Marquina de Hoyos , Ivan Santamaria-Holek

We consider the overdamped dynamics of a paradigmatic long-range system of particles residing on the sites of a one-dimensional lattice, in the presence of thermal noise. The internal degree of freedom of each particle is a periodic…

Statistical Mechanics · Physics 2013-12-03 Shamik Gupta , Alessandro Campa , Stefano Ruffo

We study dynamic heterogeneities in a model glass-former whose overlap with a reference configuration is constrained to a fixed value. The system phase-separates into regions of small and large overlap, so that dynamical correlations remain…

Disordered Systems and Neural Networks · Physics 2012-07-19 C. Cammarota , A. Cavagna , I. Giardina , G. Gradenigo , T. S. Grigera , G. Parisi , P. Verrocchio

We consider a previously experimentally realized discrete model that describes a mechanical metamaterial consisting of a chain of pairs of rigid units connected by flexible hinges. Upon analyzing the linear band structure of the model, we…

Pattern Formation and Solitons · Physics 2023-02-15 H. Duran , J. Cuevas-Maraver , P. G. Kevrekidis , A. Vainchtein

We present a convergent and constraint-preserving numerical discretization of a mathematical model for the dynamics of a liquid crystal subjected to an electric field. This model can be derived from the Oseen-Frank director field theory,…

Numerical Analysis · Mathematics 2021-04-23 Franziska Weber
‹ Prev 1 2 3 10 Next ›