作者PttFund (批踢踢基金只进不出)
看板Math
标题[线代] 线代(6)
时间Sun Aug 21 10:19:58 2005
Let F_9 be a finite field of nine elements. Can you find a
3╳3 matrix with entries in F_9 that one of its eigenvalues
is in an extension field of F_9 rather than in F_9 itself?
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