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We consider a semilinear parabolic degenerated Hamilton-Jacobi-Bellman (HJB) equation with singularity which is related to a stochastic control problem with fuel constraint. The fuel constraint translates into a singular initial condition…

数理金融 · 定量金融 2016-09-23 Mourad Lazgham

Quantum fluctuations driven by non-stoquastic Hamiltonians have been conjectured to be an important and perhaps essential missing ingredient for achieving a quantum advantage with adiabatic optimization. We introduce a transformation that…

量子物理 · 物理学 2020-09-30 Elizabeth Crosson , Tameem Albash , Itay Hen , A. P. Young

We investigate time dependent, first order Mean Field Games on the torus comparing, in a broad and general framework, the classical differential formulation , given by a Hamilton Jacobi equation coupled with a continuity equation, with a…

偏微分方程分析 · 数学 2025-12-02 Antonio Siconolfi

It is shown that any function $G(q_{i}, p_{i}, t)$, defined on the extended phase space, defines a one-parameter group of canonical transformations which act on any function $f(q_{i}, t)$, in such a way that if $G$ is a constant of motion…

经典物理 · 物理学 2013-09-20 G. F. Torres del Castillo

We obtain the first quantitative stochastic homogenization result for reaction-diffusion equations, for ignition reactions in dimensions $d\le 3$ that either have finite ranges of dependence or are close enough to such reactions, and for…

偏微分方程分析 · 数学 2021-07-27 Yuming Paul Zhang , Andrej Zlatos

We obtain the first probabilistic proof of continuous differentiability of time-dependent optimal boundaries in optimal stopping problems. The underlying stochastic dynamics is a one-dimensional, time-inhomogeneous diffusion. The gain…

概率论 · 数学 2024-05-28 Tiziano De Angelis , Damien Lamberton

The paper studies homogenization problem for a non-autonomous parabolic equation with a large random rapidly oscillating potential in the case of one dimensional spatial variable. We show that if the potential is a statistically homogeneous…

偏微分方程分析 · 数学 2013-05-16 E. Pardoux , A. Piatnitski

We show that for a family of randomly kicked Hamiton-Jacobi equations on the torus, almost surely, the solution of an initial value problem converges exponentially fast to the unique stationary solution. Combined with the results in…

动力系统 · 数学 2017-04-03 Renato Iturriaga , Konstantin Khanin , Ke Zhang

We develop Hamilton-Jacobi theory for Chaplygin systems, a certain class of nonholonomic mechanical systems with symmetries, using a technique called Hamiltonization, which transforms nonholonomic systems into Hamiltonian systems. We give a…

数学物理 · 物理学 2011-08-15 Tomoki Ohsawa , Oscar E. Fernandez , Anthony M. Bloch , Dmitry V. Zenkov

We study continuous dependence estimates for viscous Hamilton- Jacobi equations defined on a network Gamma. Given two Hamilton-Jacobi equations, we prove an estimate of the C2-norm of the difference between the corresponding solutions in…

偏微分方程分析 · 数学 2023-03-09 Fabio Camilli , Claudio Marchi

Stochastic contact Hamiltonian systems are a class of important mathematical models, which can describe the dissipative properties with odd dimensions in the stochastic environment. In this article, we investigate the numerical dynamics of…

数值分析 · 数学 2024-11-19 Qingyi Zhan , Jinqiao Duan , Xiaofan Li , Lijin Wang

We consider the homogenization of parabolic equations with large spatially-dependent potentials modeled as Gaussian random fields. We derive the homogenized equations in the limit of vanishing correlation length of the random potential. We…

数学物理 · 物理学 2008-09-08 Guillaume Bal

In this note, we characterize the solution of a system of elliptic integro-differential equations describing a phe-notypically structured population subject to mutation, selection and migration. Generalizing an approach based on…

偏微分方程分析 · 数学 2018-05-25 Sepideh Mirrahimi , Sylvain Gandon

In this paper we present a stochastic homogenization result for a class of Hilbert space evolutionary gradient systems driven by a quadratic dissipation potential and a $\Lambda$-convex energy functional featuring random and rapidly…

偏微分方程分析 · 数学 2019-05-08 Martin Heida , Stefan Neukamm , Mario Varga

At the exceptional point where two eigenstates coalesce in open quantum systems, the usual diagonalization scheme breaks down and the Hamiltonian can only be reduced to Jordan block form. Most of the studies on the exceptional point…

量子物理 · 物理学 2017-09-22 Kazuki Kanki , Savannah Garmon , Satoshi Tanaka , Tomio Petrosky

We prove a stochastic homogenization result for integral functionals defined on finite partitions assuming the surface tension to be stationary and possibly ergodic. We also consider the convergence of boundary value problems when we impose…

偏微分方程分析 · 数学 2023-03-27 Annika Bach , Matthias Ruf

We show that a two-level non-Hermitian Hamiltonian with constant off-diagonal exchange elements can be analyzed exactly when the underlying exceptional point is perfectly encircled in the complex plane. The state evolution of this system is…

Since Newton's time, deterministic causality has been considered a crucial prerequisite in any fundamental theory in physics. In contrast, the present work investigates stochastic dynamical models for motion in one spatial dimension, in…

统计力学 · 物理学 2025-02-04 Bing Miao , Hong Qian , Yong-Shi Wu

This paper studies homogenization of stochastic differential systems. The standard example of this phenomenon is the small mass limit of Hamiltonian systems. We consider this case first from the heuristic point of view, stressing the role…

数学物理 · 物理学 2018-08-16 Jeremiah Birrell , Jan Wehr

We consider a finite horizon stochastic optimal control problem for nearest-neighbor random walk $\{X_i\}$ on the set of integers. The cost function is the expectation of exponential of the path sum of a random stationary and ergodic…

概率论 · 数学 2017-05-23 Atilla Yilmaz , Ofer Zeitouni