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In this paper we prove the local and global well-posedness of the time fractional abstract Schr\"odinger type evolution equation on the Hilbert space and as an application, we prove the local and global well-posedness of the fractional…

偏微分方程分析 · 数学 2023-11-29 Mingxuan He , Na Deng

We study boundary controllability of one-dimensional coupled hyperbolic-parabolic cascades, focusing on the fine structure of reachable sets. The main model is a wave-heat cascade in which a boundary control acts on the wave equation and…

最优化与控制 · 数学 2026-01-27 Hugo Lhachemi , Christophe Prieur , Emmanuel Trélat

We present a sufficient condition for approximate controllability of the bilinear discrete-spectrum Schr\"odinger equation exploiting the use of several controls. The controllability result extends to simultaneous controllability,…

最优化与控制 · 数学 2013-02-19 Ugo Boscain , Marco Caponigro , Mario Sigalotti

In this paper we develop a geometric theory for quasilinear parabolic problems in weighted $L_p$-spaces. We prove existence and uniqueness of solutions as well as the continuous dependence on the initial data. Moreover, we make use of a…

偏微分方程分析 · 数学 2015-10-22 Matthias Köhne , Jan Pruess , Mathias Wilke

For general second order evolution equations, we prove an optimal condition on the degree of unboundedness of the damping, that rules out finite-time extinction. We show that control estimates give energy decay rates that explicitly depend…

偏微分方程分析 · 数学 2024-09-23 Perry Kleinhenz , Ruoyu P. T. Wang

Darwinian evolution can be modeled in general terms as a flow in the space of fitness (i.e. reproductive rate) distributions. In the diffusion approximation, Tsimring et al. have showed that this flow admits "fitness wave" solutions:…

种群与进化 · 定量生物学 2017-01-30 Matteo Smerlak , Ahmed Youssef

In this paper, we study the controllability of a Schr\"odinger equation with mixed boundary conditions on disjoint subsets of the boundary: dynamic boundary condition of Wentzell type, and Dirichlet boundary condition. The main result of…

最优化与控制 · 数学 2023-01-09 Alberto Mercado , Roberto Morales

We prove a Carleman estimate for a one-dimensional parabolic equation which degenerates at one extremity of the domain and has a bounded, time dependent coefficient multiplying the diffusion term. Then we use the estimate to show the null…

偏微分方程分析 · 数学 2025-08-26 Alfredo S. Gamboa , Juan Limaco , Luis P. Yapu

This review surveys previous and recent results on null controllability and inverse problems for parabolic systems with dynamic boundary conditions. We aim to demonstrate how classical methods such as Carleman estimates can be extended to…

最优化与控制 · 数学 2024-09-17 S. E. Chorfi , L. Maniar

Symmetry properties of the evolution equation and the state to be controlled are shown to determine the basic features of the linear control of unstable orbits. In particular, the selection of control parameters and their minimal number are…

chao-dyn · 物理学 2009-10-30 R. O. Grigoriev , M. C. Cross

In this article we prove semiglobal stabilization and exact controllability results for nonlinear plate equations with hinged boundary conditions and analytic nonlinearity. These results hold when the damping or control is localized in a…

偏微分方程分析 · 数学 2025-11-24 Cristóbal Loyola

This analysis is concerned with the controllability of quantum systems in the case where the standard dipolar approximation, involving the permanent dipole moment of the system, is corrected with a polarizability term, involving the field…

偏微分方程分析 · 数学 2014-06-17 Nabile Boussaid , Marco Caponigro , Thomas Chambrion

This paper deals with the controllability for a class of non-autonomous neutral differential equations of fractional order with infinite delay in an abstract space. The semi-group theory of bounded linear operators, fractional calculus, and…

最优化与控制 · 数学 2024-03-15 Areefa Khatoon , Abdur Raheem , Asma Afreen

We present a relativistic quantum mechanics of a point mass with absolute thermodynamic time and temperature, combined to a single complex parameter of evolution. In this theory, the geometric time is introduced as one of space-time…

高能物理 - 理论 · 物理学 2007-05-23 Vadim V. Asadov , Oleg V. Kechkin

In this paper, we study the long-time behavior of a stochastic heat equation with multiplicative noise and localized control. We begin by analyzing the uncontrolled dynamics and derive explicit decay rates for both mean-square and almost…

最优化与控制 · 数学 2026-04-13 Víctor Hernández-Santamaría , Kévin Le Balc'h , Liliana Peralta

We prove the existence of global solutions for some coupled systems of partially nonautonomous evolution inclusions comprised of a Cauchy problem with a compact resolvent semigroup generator and an evolution equation governed by a…

偏微分方程分析 · 数学 2026-05-20 Bernhard Aigner , Jacson Simsen , Marcus Waurick

We study the memory-type null controllability property for wave equations involving memory terms. The goal is not only to drive the displacement and the velocity (of the considered wave) to rest at some time-instant but also to require the…

最优化与控制 · 数学 2017-11-15 Qi Lu , Xu Zhang , Enrique Zuazua

It is shown that a large subset of initial data with finite energy ($L^2$ norm)evolves nearly linearly in nonlinear Schr\" odinger equation with periodic boundary conditions. These new solutions are not perturbations of the known ones such…

数学物理 · 物理学 2008-02-15 M. Burak Erdogan , Vadim Zharnitsky

We discuss an approach to determine averages of the work, dissipated heat and variation of internal energy of an open quantum system driven by an external classical field. These quantities are measured by coupling the quantum system to a…

量子物理 · 物理学 2022-03-23 Paolo Solinas , Mirko Amico , Nino N. Zanghì

We consider several inverse problems for elliptic equations whose coefficients are random, without imposing a special probabilistic structure on the randomness. The main body treats the Schr\"odinger equation. We compare what can be…

偏微分方程分析 · 数学 2026-05-25 Cătălin I. Cârstea
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