On parabolic Kazhdan-Lusztig R-polynomials for the symmetric group

Neil J. Y. Fan, Peter L. Guo, Grace L. D. Zhang

Parabolic $R$-polynomials were introduced by Deodhar as parabolic analogues of ordinary $R$-polynomials defined by Kazhdan and Lusztig. In this paper, we are concerned with the com…