Dn中幂等元的一种关系
Dn중멱등원적일충관계
A Relation of Idempotent Matrices in Dn*
  • 万方数据
    数学研究 수학연구
    JOURNAL OF MATHEMATICAL STUDY
    2003年 4期 384-387 ,共4页

    周绍艳%张荣华

    주소염%장영화

    双随机矩阵%幂等矩阵 雙隨機矩陣%冪等矩陣
    쌍수궤구진%멱등구진
    doubly stochastic matrix%idempotent matrix
    本文研究了Dn中幂等元的某些性质,给出了幂等元的另一个等价刻划以及两幂等元之积仍是幂等元的一个充要条件.
    본문연구료Dn중멱등원적모사성질,급출료멱등원적령일개등개각화이급량멱등원지적잉시멱등원적일개충요조건.
    This paper investigates some properties of idempotent matrices in Dn. We give another equivalence description of idempotent matrices and a necessary and sufficient condition that the product of two idempotent matrices is still idempotent.
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