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Reeb orbits that force topological entropy [PDF]

open access: yesErgodic Theory and Dynamical Systems, 2020
We develop a forcing theory of topological entropy for Reeb flows in dimension three. A transverse link L in a closed contact $3$ -manifold $(Y,\xi )$ is said to force topological entropy if $(Y,\xi )$ admits a Reeb flow with vanishing topological ...
Marcelo R. R. Alves, A. Pirnapasov
semanticscholar   +1 more source

Topological Properties and Entropy Calculations of Aluminophosphates

open access: yesMathematics, 2023
Topological indices are invariant numerical quantities of a graph that give facts about the structure of graphs and are found to be very helpful in predicting the physical properties of aluminophosphates.
J. S. Vijay   +6 more
semanticscholar   +1 more source

Topology and topological sequence entropy [PDF]

open access: yesScience China Mathematics, 2019
Let $X$ be a compact metric space and $T:X\longrightarrow X$ be continuous. Let $h^*(T)$ be the supremum of topological sequence entropies of $T$ over all subsequences of $\mathbb Z_+$ and $S(X)$ be the set of the values $h^*(T)$ for all continuous maps $T$ on $X$.
Snoha, L., Ye, X., Zhang, R.
openaire   +4 more sources

Topological charge-entropy scaling in kagome Chern magnet TbMn6Sn6 [PDF]

open access: yesNature Communications, 2021
In ordinary materials, electrons conduct both electricity and heat, where their charge-entropy relations observe the Mott formula and the Wiedemann-Franz law.
Xitong Xu   +11 more
semanticscholar   +1 more source

A Billingsley type theorem for Bowen topological entropy of nonautonomous dynamical systems

open access: yesOpen Mathematics, 2022
This article is devoted to the study of the Bowen topological entropy for nonautonomous dynamical systems, which is an extension of the classical definition of Bowen topological entropy. We show that the Bowen topological entropy can be determined by the
Zhang Bin, Liu Lei
doaj   +1 more source

The topological entropy of iterated piecewise affine maps is uncomputable [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2001
We show that it is impossible to compute (or even to approximate) the topological entropy of a continuous piecewise affine function in dimension four. The same result holds for saturated linear functions in unbounded dimension.
Pascal Koiran
doaj   +2 more sources

Domain Wall Topological Entanglement Entropy [PDF]

open access: yesPhysical Review Letters, 2021
5 pages, 5 ...
Bowen Shi, Isaac H. Kim
openaire   +3 more sources

C0-stability of topological entropy for contactomorphisms [PDF]

open access: yes, 2020
Topological entropy is not lower semi-continous: small perturbation of the dynamical system can lead to a collapse of entropy. In this note we show that for some special classes of dynamical systems (geodesic flows, Reeb flows, positive contactomorphisms)
Lucas Dahinden
semanticscholar   +1 more source

Entropy and induced dynamics on state spaces [PDF]

open access: yes, 2004
We consider the topological entropy of state space and quasi-state space homeomorphisms induced from C*-algebra automorphisms. Our main result asserts that, for automorphisms of separable exact C*-algebras, zero Voiculescu-Brown entropy implies zero ...
Kerr, David
core   +1 more source

Bowen entropy for actions of amenable groups [PDF]

open access: yes, 2016
Bowen introduced a definition of topological entropy of subset inspired by Hausdorff dimension in 1973 \cite{B}. In this paper we consider the Bowen's entropy for amenable group action dynamical systems and show that under the tempered condition, the ...
Chen, Ercai, Zheng, Dongmei
core   +1 more source

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