J4 ›› 2012, Vol. 47 ›› Issue (2): 78-81.

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On the idempotent ranks of the semigroup V(n,r)

ZHAO Ping   

  1. Mathematics Teaching ＆ Research Section, Guiyang Medical College, Guiyang 550004, Guizhou, China
  • Received:2011-03-03 Online:2012-02-20 Published:2012-12-24

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Key words: transformation semigroup; decreasing; order-preserving; idempotent rank; rank

[1] ZHAO Ping1, YOU Tai-jie2, XU Bo2， HU Hua-bi1. Idempotent rank in decreasing and order-preserving finite partial transformation semigroups [J]. J4, 2011, 46(4): 75-77.
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