由抛物偏微分方程所支配的混凝土坝温度控制系统的能控性问题

The Problem of Controllability for a Temperature Control System Governed by Parabolic Partial Differential Equation

用半群抽象表示了复连通域上抛物偏微分方程所支配的混凝土坝温度控制系统，证明了系统能控的充分必要条件。

It expresses a temperature control system governed by parabolic partial differential equation on a doubly connected region of concvete dams abstractly on a method of semigroups.It proves the necessary and sufficent conditions of controllability for the system.