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\begin{Cabstract}{$M-$çŸ©é˜µ}{$H-$çŸ©é˜µ}{Draziné€†}{Pseudo-Draziné€†}{æ¡ä»¶æ•°}
J.\nbs H.\nbs Wilkinson\citeup{iflai1977}å»ºç«‹äº†éžå¥‡å¼‚çŸ©é˜µçš„é€†æ˜¯çŸ©é˜µå…ƒç´&nbsp;çš„è¿žç»­å‡½æ•°çš„ç†è®ºã€‚G.\nbs W.\nbs Stewart\citeup{crawfprd1995}æŽ¨å‡ºäº†çŸ©é˜µ çš„å¹¿ä¹‰é€† çš„è¿žç»­æ€§ã€‚ä¸ºäº†å¾—åˆ°Draziné€†çš„è¿žç»­æ€§ï¼Œ æœ¬æ–‡å…ˆç»™å‡ºäº†$M-$çŸ©é˜µã€$H-$çŸ©é˜µç±»çš„é€†çš„è¿žç»­æ€§ã€‚Campbellå’ŒMeyer\citeup{zhaoyaodong1998} ä¹Ÿç»™å‡ºäº†Drazin é€†çš„è¿žç»­æ€§æ€§è´¨ï¼Œä½†æ²¡æœ‰ç»™å‡ºæ˜Žæ˜¾çš„è¾¹ç•Œã€‚\par
Draziné€†å¯¹æ‰°åŠ¨æ˜¯å¾ˆä¸ç¨³å®šçš„ã€‚ç„¶è€Œï¼Œåœ¨æŸç§ç‰¹å®šçš„æ‰°åŠ¨æ¡ä»¶ä¸‹ï¼ŒçŸ©é˜µ$(A+E)^D$ä¸Ž$A^D$çš„æŽ¥è¿‘ç¨‹åº¦èƒ½å¤Ÿå¾—åˆ°é‡åŒ–ä¸”ä¹Ÿèƒ½å¾—åˆ°æ˜Žæ˜¾çš„ç›¸å¯¹è¯¯å·®è¾¹ç•Œã€‚åŸºäºŽDraziné€†çš„ä¸åŒå½¢å¼ï¼Œå¾ˆå¤šç§‘å­¦å®¶å’Œå­¦è€…ä»Žäº‹è¿™ä¸€æ–¹é¢çš„ç&nbsp;”ç©¶ã€‚U.\nbs G.\nbs Rothblum ç»™å‡ºçš„Draziné€†çš„ä»¥ä¸‹çš„è¡¨è¾¾å¼ï¼š
$$A^D=(A-H)^{-1}(I-H)=(I-H)(A-H)^{-1}$$
å…¶ä¸­$H=I-AA^D=I-A^DA$.åŸºäºŽè¿™ä¸ªè¡¨è¾¾å¼,æˆ‘ä»¬åœ¨æœ¬æ–‡ä¸­ä¹Ÿç»™å‡ºäº†$\|(A+E)^D-A^D\|_2/\| A^D\|$å’Œ$\|(A+E)^\sharp-A^D\|_2/\|A^D\|_2$çš„èŒƒæ•°ä¼°è®¡ï¼Œå¹¶ä¸Žå‰äººçš„æˆæžœè¿›è¡Œäº†æ¯”è¾ƒã€‚
\end{Cabstract}
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