Comments on "On the Nondomination of Cohorts Coteries"

For original paper see Jiang, ibid., vol.53, p.922-923 (2004). Jiang shows a result that a Cohorts coterie is nondominated (ND) under a Cohorts structure Coh(k,n) = (C₁,C₂,..., C_n) if |C₁| = k. However, the result is incorrect. In this comment, we correct the result by deriving the necessary and sufficient conditions for the Cohorts coterie to be ND. As we will see, a Cohorts coterie under Coh(k,n) is ND if and only if k = 1 or n = 1.