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On the numerical solution of large scale Lyapunov and Riccati matrix equations

Abstract

本论文将主要讨论如下两类矩阵方程的求解: Lyapunov方程(\textbf{LE}):\quadAX+XA^*+BB^*=0 连续时间代数Riccati方程(\textbf{CARE}):\quadA^*X+XA+C^*C-XBB^*X=0 其中A\in\CC^{n\timesn},B\in\CC^{n\timesq},C\in\CC^{p\timesn}.本论文中讨论的是这两类方程在大规模情况下的求解,即意味着AA是大型稀疏矩阵并且满足p,q\lln。 这两类方程在数学理论和实际应用中都十分重要。 Lyapunov方程在线性系统理论中占...In this thesis, we explore solvers on these two kinds of matrix equations: Lyapunov Equation (\textbf{LE}): AX+XA+BB=0,\qquad AX+XA^*+BB^*=0, and Continuous-time Algebraic Riccati Equation (\textbf{CARE}) : AX+XA+CCXBBX=0, A^*X+XA+C^*C-XBB^*X=0, where A \in \CC^{n \times n}, B \in \CC^{n \times q}, C \in \CC^{p \times n}. We focus our research on large-scale problems. This means nn is quite large,...学位:理学博士院系专业:数学科学学院_计算数学学号:1902010015396

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