华南师范大学学报(自然科学版)
華南師範大學學報(自然科學版)
화남사범대학학보(자연과학판)
JOURNAL OF SOUTH CHINA NORMAL UNIVERSITY (NATURAL SCIENCE EDITION)
2014年
2期
29-33
,共5页
矩阵符号函数%周期Sylvester方程%正则周期矩阵对
矩陣符號函數%週期Sylvester方程%正則週期矩陣對
구진부호함수%주기Sylvester방정%정칙주기구진대
the matrix sign function%periodic continuous-time Sylvester equations%regular periodic matrix pairs
给出连续型周期Sylvester方程有唯一解的充要条件,研究了这类方程满足特征值分别位于开左半复平面和开右半复平面或者位于单位圆周内和单位圆周外条件时,用矩阵符号函数求解的数值方法,并通过比较用符号函数求解时的相对残量和用Z\b求解时的残量来说明算法的可行性。
給齣連續型週期Sylvester方程有唯一解的充要條件,研究瞭這類方程滿足特徵值分彆位于開左半複平麵和開右半複平麵或者位于單位圓週內和單位圓週外條件時,用矩陣符號函數求解的數值方法,併通過比較用符號函數求解時的相對殘量和用Z\b求解時的殘量來說明算法的可行性。
급출련속형주기Sylvester방정유유일해적충요조건,연구료저류방정만족특정치분별위우개좌반복평면화개우반복평면혹자위우단위원주내화단위원주외조건시,용구진부호함수구해적수치방법,병통과비교용부호함수구해시적상대잔량화용Z\b구해시적잔량래설명산법적가행성。
The sufficient and necessary conditions of the existence of unique solution of the periodic continuous -time Sylvester equation are given .The matrix sign function is used to solve the periodic continuous-time Sylvester equa-tion, which eigenvalues are contained in the open left half complex plane and the open right half complex plane or inside the unit circle and outside the unit circle ,respectively .The feasibility of the algorithm is illustrated by com-paring the relative residuals solved by sign function and Z\b.