Results 11 to 20 of about 28,962 (144)

Bell polynomials in combinatorial Hopf algebras

open access: yesComptes Rendus. Mathématique, 2017
We introduce partial $r$-Bell polynomials in three combinatorial Hopf algebras. We prove a factorization formula for the generating functions which is a consequence of the Zassenhauss formula.Comment: 7 ...
Ali Chouria, Jean-Gabriel Luque
semanticscholar   +7 more sources

Multigraded combinatorial Hopf algebras and refinements of odd and even subalgebras [PDF]

open access: yesJournal of Algebraic Combinatorics, 2009
We develop a theory of multigraded (i.e., ℕl-graded) combinatorial Hopf algebras modeled on the theory of graded combinatorial Hopf algebras developed by Aguiar et al. (Compos. Math. 142:1–30, 2006).
Samuel K. Hsiao, Gizem Karaali
semanticscholar   +7 more sources

Combinatorial Hopf Algebras and Towers of Algebras [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2008
Bergeron and Li have introduced a set of axioms which guarantee that the Grothendieck groups of a tower of algebras $\bigoplus_{n \geq 0}A_n$ can be endowed with the structure of graded dual Hopf algebras.
Nantel Bergeron, Thomas Lam, Huilan Li
doaj   +5 more sources

A Uniform Generalization of Some Combinatorial Hopf Algebras [PDF]

open access: yesAlgebras and Representation Theory, 2015
We generalize the Hopf algebras of free quasisymmetric functions, quasisymmetric functions, noncommutative symmetric functions, and symmetric functions to certain representations of the category of finite Coxeter systems and its dual category.
Jia Huang
semanticscholar   +6 more sources

Shifted combinatorial Hopf algebras from K-theory [PDF]

open access: yesAlgebraic Combinatorics, 2022
In prior joint work with Lewis, we developed a theory of enriched set-valued $P$-partitions to construct a $K$-theoretic generalization of the Hopf algebra of peak quasisymmetric functions.
Eric Marberg
semanticscholar   +4 more sources

Combinatorial Hopf algebras and K-homology of Grassmanians [PDF]

open access: yesInternational Mathematics Research Notices, 2007
Motivated by work of Buch on set-valued tableaux in relation to the K-theory of the Grassmannian, we study six combinatorial Hopf algebras. These Hopf algebras can be thought of as K-theoretic analogues of the by now classical ``square'' of Hopf algebras
T. Lam, P. Pylyavskyy
semanticscholar   +4 more sources

Superization and (q, t)-Specialization in Combinatorial Hopf Algebras [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2008
We extend a classical construction on symmetric functions, the superization process, to several combinatorial Hopf algebras, and obtain analogs of the hook-content formula for the (q,t)-specializations of various bases.
J. Novelli, J. Thibon
semanticscholar   +6 more sources

Polynomial realizations of some combinatorial Hopf algebras [PDF]

open access: yesJournal of Noncommutative Geometry, 2010
We construct explicit polynomial realizations of some combinatorial Hopf algebras based on various kind of trees or forests, and some more general classes of graphs, ranging from the Connes-Kreimer algebra to an algebra of labelled forests isomorphic to ...
L. Foissy, J. Novelli, J. Thibon
semanticscholar   +6 more sources

Lie groups of controlled characters of combinatorial Hopf algebras [PDF]

open access: yesAnnales de l’Institut Henri Poincaré D, Combinatorics, Physics and their Interactions, 2016
In this article groups of controlled characters of a combinatorial Hopf algebra are considered from the perspective of infinite-dimensional Lie theory. A character is controlled in our sense if it satisfies certain growth bounds, e.g.\ exponential growth.
R. Dahmen, Alexander Schmeding
semanticscholar   +5 more sources

Bell polynomials in combinatorial Hopf algebras

open access: yes, 2016
Partial multivariate Bell polynomials have been defined by E.T. Bell in 1934. These polynomials have numerous applications in Combinatorics, Analysis, Algebra, Probabilities, etc.
Aboud, Ammar   +4 more
core   +3 more sources

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