34 search results - page 1 / 7 » Quasisymmetric Schur functions |
JCT
2011
12 years 11 months ago
2011
Abstract. We introduce a new basis for quasisymmetric functions, which arise from a specialization of nonsymmetric Macdonald polynomials to standard bases, also known as Demazure a...
EJC
2010
13 years 1 months ago
2010
JCT
2011
12 years 11 months ago
2011
The Pieri rule expresses the product of a Schur function and a single row Schur function in terms of Schur functions. We extend the classical Pieri rule by expressing the product ...
COMBINATORICS
2007
13 years 4 months ago
2007
We define a partial order on colored compositions with many properties analogous to Young’s lattice. We show that saturated chains correspond to colored permutations, and that ...
EJC
2010
13 years 4 months ago
2010
We give a combinatorial formula for the inverses of the alternating sums of free quasi-symmetric functions of the form F(I) where I runs over compositions with parts in a prescribe...