Results 61 to 70 of about 4,522 (155)

Hamiltonian dynamics, nanosystems, and nonequilibrium statistical mechanics [PDF]

open access: yes, 2006
An overview is given of recent advances in nonequilibrium statistical mechanics on the basis of the theory of Hamiltonian dynamical systems and in the perspective provided by the nanosciences.
Gaspard, Pierre
core   +1 more source

Coexisting infinitely many attractors in a new chaotic system with a curve of equilibria: Its extreme multi-stability and Kolmogorov–Sinai entropy computation

open access: yesAdvances in Mechanical Engineering, 2019
A new five-dimensional chaotic system with extreme multi-stability is introduced in this article. The mathematical model is established, and numerical simulations are done. This dynamical system complicates incident of extreme multi-stability.
Atefeh Ahmadi   +5 more
doaj   +1 more source

Linear growth of the entanglement entropy and the Kolmogorov-Sinai rate

open access: yesJournal of High Energy Physics, 2018
The rate of entropy production in a classical dynamical system is characterized by the Kolmogorov-Sinai entropy rate h KS given by the sum of all positive Lyapunov exponents of the system.
Eugenio Bianchi   +2 more
doaj   +1 more source

Probing chaos in the spherical p-spin glass model

open access: yesSciPost Physics, 2023
We study the dynamics of a quantum $p$-spin glass model starting from initial states defined in microcanonical shells, in a classical regime. We compute different chaos estimators, such as the Lyapunov exponent and the Kolmogorov-Sinai entropy, and find ...
Lorenzo Correale, Anatoli Polkovnikov, Marco Schirò, Alessandro Silva
doaj   +1 more source

Category Theory for Autonomous and Networked Dynamical Systems

open access: yesEntropy, 2019
In this discussion paper we argue that category theory may play a useful role in formulating, and perhaps proving, results in ergodic theory, topogical dynamics and open systems theory (control theory). As examples, we show how to characterize Kolmogorov&
Jean-Charles Delvenne
doaj   +1 more source

Mixing property of triangular billiards

open access: yes, 1999
We present numerical evidence which strongly suggests that irrational triangular billiards (all angles irrational with $\pi$) are mixing. Since these systems are known to have zero Kolmogorov-Sinai entropy, they may play an important role in ...
Casati, Giulio, Prosen, Tomaz
core   +1 more source

Association between body mass index, obesity, and vulvar cancer recurrence

open access: yesInternational Journal of Gynecology &Obstetrics, Volume 170, Issue 1, Page 268-273, July 2025.
Abstract Objective The objective of this paper is to study the association between obesity and tumor recurrence in patients with vulvar cancer. Methods This is a retrospective study including vulvar cancer patients from 2003 to 2022. Our primary outcome was progression‐free survival (PFS) stratified by status of obesity, defined as body mass index (BMI)
Yossi Tzur   +7 more
wiley   +1 more source

Entropy production in classical Yang-Mills theory from Glasma initial conditions

open access: yes, 2013
We study the thermalization process in classical Yang-Mills (CYM) field theory starting from noisy glasma-like initial conditions by investigating the initial-value sensitivity of trajectories. Kunihiro et al.
Iida, Hideaki   +5 more
core   +1 more source

Bring It Down: A Formative Evaluation of Reach and Effectiveness of a Blood Pressure Reduction Program in Detroit, Michigan USA

open access: yesThe Journal of Clinical Hypertension, Volume 27, Issue 7, July 2025.
ABSTRACT Hypertension is the most important contributor to the development of cardiovascular disease. The objective of the Bring it Down program was to examine the reach and effectiveness of linkage to primary care via community health workers (CHWs) to improve blood pressure control among people with undiagnosed or uncontrolled hypertension.
Bethany Foster   +11 more
wiley   +1 more source

t-Entropy formulae for concrete classes of transfer operators

open access: yesЖурнал Белорусского государственного университета: Математика, информатика, 2019
t-Entropy is a principal object of the spectral theory of operators, generated by dynamical systems, namely, weighted shift operators and transfer operators.
Krzysztof Bardadyn   +3 more
doaj   +1 more source

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