Chinese Quarterly Journal of Mathematics ›› 2009, Vol. 24 ›› Issue (2): 168-172.

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Counting Formulas for Restricted Matrix of Set 

  

  1. School of Mathematical Science, Xuzhou Normal University
  • Received:2005-04-22 Online:2009-06-30 Published:2023-07-04
  • About author:LU Qing-lin(1963-), male, native of Xuyi, Jiangsu, a professor of Xuzhou Normal University, Ph.D., engages in combinatorics.
  • Supported by:
     Supported by the National Natural Science Foundation of China(10771100); Supported by the Natural Science Foundation of Education Committee of Jiangsu Province(06KJD110179);

Abstract: In this paper, we consider the counting problem of matrix of set (Aij)k×n which satisfies ,···, and other conditions, and obtain some computational formulas which extend all the results in [1].

Key words: counting, matrix of set, exponential generating function

CLC Number: