摘要

Given partitions Rand S with the same weight and S <= R*, the Robinson-Schensted-Knuth correspondence establishes a bijection between the class A(R, S) of (0, 1)-matrices with row-sum R and column-sum S, and pairs of Young tableaux with conjugate shape lambda and lambda*, with S <= lambda <= R*. We give a canonical construction for matrices in A(R, S) whose insertion tableau has a prescribed shape lambda, with S <= lambda <= R*. This algorithm generalizes some recent constructions due to R. Brualdi for the extremal cases lambda = S and lambda = R* (using a Ryser-like algorithm), and due to C.M. da Fonseca and R. Mamede for particular cases of lambda.

  • 出版日期2013-10-28