01 01 =O 0 k 01 Jn(4) 故,当m,= 01 2(4)最大oam阶数时, (n(4)-Aln)=06 0 1 1 0 0 1 ( ) 1 0 0 1 1 0 i i i n i i n n J I       = −     0 1 1 0 k k O       =       ( ) ( ( ) ) i i i i i n i m n i i n m J Jordan J I O    = − = 故 当 的最大 的阶数时 ,