Results 21 to 30 of about 1,865,782 (225)
Double field theory at SL(2) angles
Journal of High Energy Physics, 2017 An extended field theory is presented that captures the full SL(2) × O(6, 6 + n) duality group of four-dimensional half-maximal supergravities. The theory has section constraints whose two inequivalent solutions correspond to minimal D = 10 supergravity ...
Franz Ciceri +4 more
doaj +1 more source
On the birth of limit cycles for non-smooth dynamical systems [PDF]
, 2014 The main objective of this work is to develop, via Brower degree theory and regularization theory, a variation of the classical averaging method for detecting limit cycles of certain piecewise continuous dynamical systems.
Andronov +31 more
core +3 more sources
Theory of the Loschmidt echo and dynamical quantum phase transitions in disordered Fermi systems
Physical Review Research, 2023 In this work we develop the theory of the Loschmidt echo and dynamical phase transitions in noninteracting strongly disordered Fermi systems after a quench.
Tuomas I. Vanhala, Teemu Ojanen
doaj +1 more source
Discrete Dynamical Systems: A Brief Survey [PDF]
, 2018 Dynamical system is a mathematical formalization for any fixed rule that is described in time dependent fashion. The time can be measured by either of the number systems - integers, real numbers, complex numbers.
Fernandes, S. +4 more
core +1 more source
Dynamical theory for adaptive systems [PDF]
Journal of Statistical Mechanics: Theory and ExperimentAbstract The study of adaptive dynamics, involving many degrees of freedom on two separated timescales, one for fast changes of state variables and another for the slow adaptation of parameters controlling the former’s dynamics is crucial for understanding feedback mechanisms underlying evolution and learning.
Pham, Tuan Minh, Kaneko, Kunihiko
openaire +2 more sources
Category Theory for Autonomous and Networked Dynamical Systems
Entropy, 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
Extreme Value Laws for non stationary processes generated by sequential and random dynamical systems [PDF]
, 2015 We develop and generalize the theory of extreme value for non-stationary stochastic processes, mostly by weakening the uniform mixing condition that was previously used in this setting.
Freitas, Ana Cristina Moreira +2 more
core +4 more sources
A survey on impulsive dynamical systems
Electronic Journal of Qualitative Theory of Differential Equations, 2016 In this survey we provide an introduction to the theory of impulsive dynamical systems in both the autonomous and nonautonomous cases. In the former, we will show two different approaches which have been proposed to analyze such kind of dynamical systems
Everaldo Bonotto +3 more
doaj +1 more source
Information-theoretical meaning of quantum dynamical entropy [PDF]
, 2002 The theory of noncommutative dynamical entropy and quantum symbolic dynamics for quantum dynamical systems is analised from the point of view of quantum information theory.
A. Connes +7 more
core +2 more sources
Topological Dynamics indexed by words [PDF]
, 2011 Starting with a combinatorial partition theorem for words over an infinite alphabet dominated by a fixed sequence, established recently by the authors, we prove recurrence results for topological dynamical systems indexed by such words.
Farmaki, Vassiliki +1 more
core +1 more source