Results 41 to 50 of about 4,522 (155)

T-entropy and Variational Principle for the spectral radius of transfer and weighted shift operators

, 2008
The paper deals with the variational principles for evaluation of the spectral radii of transfer and weighted shift operators associated with a dynamical system.
A. B. ANTONEVICH, A. V. LEBEDEV, Antonevich, Antonevich, Antonevich, Antonevich, Antonevich, Antonevich, Antonevich, Antonevich, Antonevich, Antonevich, Antonevich, Billingsley, Bishop, Didenko, Ekland, Gundlach, Latushkin, Latushkin, Latushkin, Lebedev, Lebedev, Martin, Parry, Rough, Ruelle, Ruelle, V. I. BAKHTIN   +28 more
core   +1 more source

Metric Entropy of Nonautonomous Dynamical Systems

Nonautonomous Dynamical Systems, 2014
We introduce the notion of metric entropy for a nonautonomous dynamical system given by a sequence (Xn; μn) of probability spaces and a sequence of measurable maps fn : Xn → Xn+1 with fnμn = μn+1.
Kawan Christoph
doaj   +1 more source

Investigation of Early Warning Indexes in a Three-Dimensional Chaotic System with Zero Eigenvalues

Entropy, 2020
A rare three-dimensional chaotic system with all eigenvalues equal to zero is proposed, and its dynamical properties are investigated. The chaotic system has one equilibrium point at the origin.
Lianyu Chen, Fahimeh Nazarimehr, Sajad Jafari, Esteban Tlelo-Cuautle, Iqtadar Hussain   +4 more
doaj   +1 more source

Entropy of eigenfunctions [PDF]

, 2007
We study the high--energy limit for eigenfunctions of the laplacian, on a compact negatively curved manifold. We review the recent result of Anantharaman-Nonnenmacher giving a lower bound on the Kolmogorov-Sinai entropy of semiclassical measures, and ...
Anantharaman, Nalini, Koch, Herbert, Nonnenmacher, Stéphane   +2 more
core   +4 more sources

Prognostic Implication of CYP2C19 Genotype According to Clinical Risk Stratification After Drug‐Eluting Stent Implantation

Clinical Pharmacology &Therapeutics, Volume 119, Issue 4, Page 928-941, April 2026.
From the nationwide multicenter consortium, 8,163 patients undergoing drug‐eluting stent implantation were classified according to the presence of the CYP2C19 loss‐of‐function (LoF) allele: rapid or normal metabolizers (RMs/NMs) vs. intermediate or poor metabolizers (IMs/PMs), and clinical risk was stratified using the CHADS‐P2A2RC and TRS 2°P scores ...
Hyun Woong Park, Jae‐Hwan Lee, Jin‐Ok Jeong, Diana A. Gorog, Udaya S. Tantry, Byeong‐Keuk Kim, Hyung Joon Joo, Kiyuk Chang, Jin‐Yong Hwang, Young Bin Song, Sung Gyun Ahn, Jung‐Won Suh, Woong Gil Choi, Jung Rae Cho, Jeehoon Kang, Sang Yeub Lee, Hyo‐Soo Kim, Moo Hyun Kim, Do‐Sun Lim, Eun‐Seok Shin, Paul A. Gurbel, Young‐Hoon Jeong, on behalf of the PTRG‐DES Consortium Investigators   +22 more
wiley   +1 more source

Quantum Dynamical Entropies and Gács Algorithmic Entropy

Entropy, 2012
Several quantum dynamical entropies have been proposed that extend the classical Kolmogorov–Sinai (dynamical) entropy. The same scenario appears in relation to the extension of algorithmic complexity theory to the quantum realm.
Fabio Benatti
doaj   +1 more source

Kolmogorov-Sinai entropy from recurrence times

, 2009
Observing how long a dynamical system takes to return to some state is one of the most simple ways to model and quantify its dynamics from data series. This work proposes two formulas to estimate the KS entropy and a lower bound of it, a sort of Shannon ...
Afraimovich, Baptista, Baptista, Baptista, Bruin, Bruin, Cohen, E.J. Ngamga, Eckmann, Faure, Gao, Grassberger, Hadyn, Hadyn, Hirata, J. Kurths, Kolmogorov, Kolmogorov, Letellier, M.S. Baptista, Margarida Brito, Marwan, Paulo R.F. Pinto, Pesin, Pinto, Poincaré, Romano, Saussol, Saussol, Saussol, Shannon, Thiel, Trulla, Walters, Wolf, Young   +35 more
core   +1 more source

Beyond the streetlight: a TREAT‐AD perspective on where to find new Alzheimer's targets

Alzheimer's &Dementia, Volume 22, Issue 2, February 2026.
Abstract Despite extensive investments in Alzheimer's disease (AD) therapeutic development, progress toward effective interventions remains modest. The landscape of potential novel therapeutic strategies is rapidly growing, but prioritization, validation, and tools to advance targets to trial are lagging.
Gregory A. Cary, Jesse C. Wiley, Gregory W. Carter, Allan I. Levey   +3 more
wiley   +1 more source

Quantum Measurement and Entropy Production

, 2000
We study the time evolution of a quantum system without classical counterpart, undergoing a process of entropy increase due to the environment influence.
Allegrini, Allegrini, Beck, Bhattacharya, Carmichael, Cook, Dalibard, Dorfman, Dorfman, Dzugutov, Gaspard, Geisel, Gisin, Grigolini, Kolmogorov, Landau, Landau, Latora, Luigi Palatella, Marco G. Pala, Mazza, Miller, Miller, Misra, Paolo Grigolini, Pattanayak, Pattanayak, Pattanayak, Pattanayak, Pesin, Sinai, Srivastava, Zurek   +32 more
core   +1 more source

The relative variational principle by Ledrappier and Walters: A survey

Journal of the London Mathematical Society, Volume 113, Issue 1, January 2026.
Abstract Ledrappier and Walters's article “A Relativised Variational Principle for Continuous Transformations”, J. Lond. Math. Soc. (2) 16 (1977), no. 3, 568–576) is a landmark in the development of thermodynamic formalism. This survey, aimed at newcomers to the field and experts in adjacent fields discusses the background, the Ledrappier–Walters ...
Anthony Quas
wiley   +1 more source