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Quasisymmetric Schur functions [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2008
We introduce a new basis for the algebra of quasisymmetric functions that naturally partitions Schur functions, called quasisymmetric Schur functions.
James Haglund   +3 more
doaj   +4 more sources

Schur-convexity for compositions of complete symmetric function dual [PDF]

open access: yesJournal of Inequalities and Applications, 2020
The Schur-convexity for certain compound functions involving the dual of the complete symmetric function is studied. As an application, the Schur-convexity of some special symmetric functions is discussed and some inequalities are established.
Huan-Nan Shi, Pei Wang, Jian Zhang
doaj   +3 more sources

Brauer-Schur functions [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2009
A new class of functions is studied. We define the Brauer-Schur functions $B^{(p)}_{\lambda}$ for a prime number $p$, and investigate their properties.
Kazuya Aokage
doaj   +2 more sources

Equality of Schur and Skew Schur Functions [PDF]

open access: yesAnnals of Combinatorics, 2005
9 pages, final ...
exaly   +3 more sources

Bilinear expansion of Schur functions in Schur Q-functions: A fermionic approach [PDF]

open access: yesProceedings of the American Mathematical Society, 2021
An identity is derived expressing Schur functions as sums over products of pairs of Schur Q Q -functions, generalizing ...
Harnad, J., Orlov, A. Yu.
openaire   +3 more sources

Refinements of the Littlewood-Richardson rule [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2009
We refine the classical Littlewood-Richardson rule in several different settings. We begin with a combinatorial rule for the product of a Demazure atom and a Schur function.
J. Haglund   +3 more
doaj   +1 more source

Schur-positivity via products of grid classes [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2020
Characterizing sets of permutations whose associated quasisymmetric function is symmetric and Schur- positive is a long-standing problem in algebraic combinatorics. In this paper we present a general method to construct Schur-positive sets and multisets,
Sergi Elizalde, Yuval Roichman
doaj   +1 more source

The Murnaghan―Nakayama rule for k-Schur functions [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2011
We prove a Murnaghan–Nakayama rule for k-Schur functions of Lapointe and Morse. That is, we give an explicit formula for the expansion of the product of a power sum symmetric function and a k-Schur function in terms of k-Schur functions.
Jason Bandlow   +2 more
doaj   +1 more source

Bottom Schur Functions [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2004
We give a basis for the space spanned by the sum $\hat{s}_\lambda$ of the lowest degree terms in the expansion of the Schur symmetric functions $s_\lambda$ in terms of the power sum symmetric functions $p_\mu$, where deg$(p_i)=1$. These lowest degree terms correspond to minimal border strip tableaux of $\lambda$. The dimension of the space spanned by
Peter Clifford, Richard P. Stanley
openaire   +3 more sources

A Littlewood-Richardson type rule for row-strict quasisymmetric Schur functions [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2011
We establish several properties of an algorithm defined by Mason and Remmel (2010) which inserts a positive integer into a row-strict composition tableau.
Jeffrey Ferreira
doaj   +1 more source

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