A Note on Enumeration of Noncrossing Partitions

Weiming Weng1, Bolian Liu 1
1 School of Mathematical Sciences South China Normal University Guangzhou 510631 P. R. China

Abstract

In this paper, we study the enumeration of noncrossing partitions with fixed points. The expressions of \({f_m}(x_1, x_2,x_3, 0, \ldots, 0)\) and \({f_m}(x_1, x_2, 0, \ldots, 0, x_{p+3}, 0, \ldots, 0)\) are found, and a new proof of the expression of \({f_m}(x_1, x_2,0, 0, \ldots, 0)\) is obtained using diophantine equations.