Geodesic
A generalization of the dual immaculate quasisymmetric functions in partially commutative variables
Spencer Daugherty1
1North Carolina State University
The electronic journal of combinatorics, Tome 31 (2024) no. 2
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We define a new pair of dual bases that generalize the immaculate and dual immaculate bases to the colored algebras $QSym_A$ and $NSym_A$. The colored dual immaculate functions are defined combinatorially via tableaux, and we present results on their Hopf algebra structure, expansions to and from other bases, and skew functions. For the colored immaculate functions, defined using creation operators, we study expansions to and from other bases and provide a right Pieri rule. This includes a combinatorial method for expanding colored immaculate functions into the colored ribbon basis that specializes to a new analogous result in the uncolored case. We use the same methods to define colored generalizations of the row-strict immaculate and row-strict dual immaculate functions with similar results.
DOI : 10.37236/12436
Classification : 05E05, 16T30
Mots-clés : Hopf algebra structure, Schur basis, shin basis, immaculate basis, row-strict immaculate basis

Spencer Daugherty  1

1 North Carolina State University 
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     author = {Spencer Daugherty},
     title = {A generalization of the dual immaculate quasisymmetric functions in partially commutative variables},
     journal = {The electronic journal of combinatorics},
     year = {2024},
     volume = {31},
     number = {2},
     doi = {10.37236/12436},
     zbl = {1536.05459},
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Spencer Daugherty. A generalization of the dual immaculate quasisymmetric functions in partially commutative variables. The electronic journal of combinatorics, Tome 31 (2024) no. 2. doi: 10.37236/12436

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