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微分方程的最优控制
Optimal Control of Differential Equations
【作者】 王丽娟;
【作者基本信息】 华中师范大学 , 理论物理, 2002, 博士
【摘要】 分布参数系统的最优控制理论主要包括:庞特里雅金最大值原理;可控性;哈密顿-雅可比方程(即动态规划方程);时间最优控制等等。 在这篇博士论文中,我们建立了非线性微分方程(包括抛物型微分方程,椭圆型微分方程以及3维Navier-Stokes方程)最优控制问题的庞特里雅金最大值原理,特别地,这些方程可能只有局部解或存在多解(我们称这样的系统为非适定系统,相应的最优控制问题为非适定最优控制问题),以及适定的非线性发展方程最优控制问题的庞特里雅金最大值原理;我们研究了phase-field系统的时间最优控制问题以及Boussinesq系统的局部内可控性。 这篇博士论文共四章.第二章是引言部分,其中我们给出了在第三章和第四章要用到的定义与主要结果.在第三章,我们建立了非线性微分方程最优控制问题的庞特里雅金最大值原理。在第四章,我们讨论了Carleman不等式及其在最优控制问题中的应用。
【Abstract】 Optimal control theory of distributed parameter systems mainly includes: Pontryagin’s maximum principle; controllability; Hamilton-Jacobi equation (i.e., dynamic programming equation); time optimal control, etc.In this dissertation, we establish Pontryagin’s maximum principle of optimal control problems governed by some nonlinear differential equations (parabolic differential equations, elliptic differential equations and 3-dimensional Navier-Stokes equations), which in particular could have local solution only or could admit more than one solution (we shall call such systems as non-well-posed systems and the corresponding optimal control problems as non-well-posed optimal control problems), and some well-posed nonlinear evolution systems; we study time optimal control of phase-field system and we obtain local internal controllability of Boussinesq system.This dissertation consists of four chapters. Chapter 2 is preliminary in which we give all definitions and main results used in Chapter 3 and Chapter 4. Chapter 3 presents Pontryagin’s maximum principle of optimal control problems governed by nonlinear differential equations. Chapter 4 is concerned with Carleman inequality and its applications to optimal control problems.
【Key words】 Optimal control; non-well-posed; Maximum principle; state constraint; finite codimension; Navier-Stokes equations; Carleman inequality; local controllability; phase-field system; Boussinesq system;
- 【网络出版投稿人】 华中师范大学 【网络出版年期】2004年 01期
- 【分类号】O232
- 【下载频次】531