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Physicists are increasingly beginning to take seriously the possibility of laws outside the traditional time-evolution paradigm; yet our understanding of determinism is still predicated on a forwards time-evolution picture, making it…

物理学史与哲学 · 物理学 2022-01-25 Emily Adlam

Time evolution of macroscopic systems is re-examined primarily through further analysis and extension of the equation of motion for the density matrix $\rho(t)$. Because $\rho$ contains both classical and quantum-mechanical probabilities it…

统计力学 · 物理学 2009-11-10 W. T. Grandy

We propose a new approximation-technique to deal with the exact macroscopic integro-differential evolution equations of statistical systems which self-consistently accounts for dissipative effects. Concentrating on one and two point…

高能物理 - 唯象学 · 物理学 2007-05-23 Herbert Nachbagauer

We present a model of discrete quantum evolution based on quantum correlations between the evolving system and a reference quantum clock system. A quantum circuit for the model is provided, which in the case of a constant Hamiltonian is…

量子物理 · 物理学 2016-07-06 A. Boette , R. Rossignoli , N. Gigena , M. Cerezo

This work presents an exact solution to the generalized Heston model, where the model parameters are assumed to have linear time dependence The solution for the model in expressed in terms of confluent hypergeometric functions.

证券定价 · 定量金融 2014-02-25 G. S. Vasilev

This study presents the approach to analyzing the evolution of an arbitrary complex system whose behavior is characterized by a set of different time-dependent factors. The key requirement for these factors is only that they must contain an…

数据分析、统计与概率 · 物理学 2020-12-01 Anatolii V. Mokshin , Vladimir V. Mokshin , Diana A. Mirziyarova

This paper investigates a new formalism to describe real time evolution of quantum systems at finite temperature. A time correlation function among subsystems will be derived which allows for a probabilistic interpretation. Our derivation…

高能物理 - 理论 · 物理学 2009-10-31 E. Mendel , M. Nest

A general approach to a broad class of asymptotic problems related to long-time influence of small perturbations, of both deterministic and stochastic type, is presented in the paper. The main characteristic of this influence is a limiting…

概率论 · 数学 2020-10-06 Mark Freidlin

In this paper we introduce the concept of random time changes in dynamical systems. The subordination principle may be applied to study the long time behavior of the random time systems. We show, under certain assumptions on the class of…

动力系统 · 数学 2021-01-01 José Luís da Silva , Yuri Kondratiev

This paper is devoted to the study of generalised time-fractional evolution equations involving Caputo type derivatives. Using analytical methods and probabilistic arguments we obtain well-posedness results and stochastic representations…

偏微分方程分析 · 数学 2022-05-03 M. E. Hernández-Hernández , V. N. Kolokoltsov , L. Toniazzi

Generalized dimensions of multifractal measures are usually seen as static objects, related to the scaling properties of suitable partition functions, or moments of measures of cells. When these measures are invariant for the flow of a…

动力系统 · 数学 2019-10-02 Théophile Caby , Davide Faranda , Giorgio Mantica , Sandro Vaienti , Pascal Yiou

In this work, sample-based observability of linear discrete-time systems is studied. That is, we consider the case where the system output measurements are not available at every time instance. It is shown that some discrete-time systems…

系统与控制 · 电气工程与系统科学 2023-04-26 Isabelle Krauss , Victor G. Lopez , Matthias A. Müller

Many real-world systems exhibit ``noisy'' evolution in time; interpreting their finitely-sampled behavior as arising from continuous-time processes (in the It\^o or Stratonovich sense) has led to significant success in modeling and analysis…

数学物理 · 物理学 2025-07-29 David Sabin-Miller , Daniel M. Abrams

Systems of differential equations with state-dependent delay are considered. The delay dynamically depends on the state i.e. is governed by an additional differential equation. By applying the time transformations we arrive to constant…

经典分析与常微分方程 · 数学 2017-06-29 A. V. Rezounenko

We prove an existence result for the time-dependent generalized Nash equilibrium problem under generalized convexity using a fixed point theorem. Furthermore, an application to the dynamic abstract economy is considered.

最优化与控制 · 数学 2017-09-20 John Cotrina , Javier Zúñiga

We consider the estimation of large covariance and precision matrices from high-dimensional sub-Gaussian or heavier-tailed observations with slowly decaying temporal dependence. The temporal dependence is allowed to be long-range so with…

统计理论 · 数学 2019-12-23 Hai Shu , Bin Nan

We present easily verifiable sufficient conditions of time-independence and commutativity for local and nonlocal symmetries for a large class of homogeneous (1+1)-dimensional evolution systems. In contrast with the majority of known…

可精确求解与可积系统 · 物理学 2007-05-23 A. Sergyeyev

This paper concerns about the limiting distributions of change point estimators, in a high-dimensional linear regression time series context, where a regression object $(y_t, X_t) \in \mathbb{R} \times \mathbb{R}^p$ is observed at every…

统计理论 · 数学 2023-10-03 Haotian Xu , Daren Wang , Zifeng Zhao , Yi Yu

In this article, we formulate the study of the unitary time evolution of systems consisting of an infinite number of uncoupled time-dependent harmonic oscillators in mathematically rigorous terms. We base this analysis on the theory of a…

数学物理 · 物理学 2009-10-06 Daniel Gómez Vergel , Eduardo J. S. Villaseñor

We investigate a continuous time, probability measure-valued dynamical system that describes the process of mutation-selection balance in a context where the population is infinite, there may be infinitely many loci, and there are weak…

种群与进化 · 定量生物学 2011-09-20 Steven N. Evans , David Steinsaltz , Kenneth W. Wachter