242 citations · 514 across the 47 of their papers we have counts for
54 papers
Posets and Fractional Calabi-Yau Categories
Frédéric Chapoton
This article deals with a relationship between derived categories of modules over some partially ordered sets and triangulated categories arising from quasi-homogeneous isolated si…
Shuffles of deformed permutahedra, multiplihedra, constrainahedra, and biassociahedra
Frédéric Chapoton, Vincent Pilaud
We introduce the shuffle of deformed permutahedra (a.k.a. generalized permutahedra), a simple associative operation obtained as the Cartesian product followed by the Minkowski sum…
Zinbiel algebras and multiple zeta values
Frédéric Chapoton
We build, using the notion of zinbiel algebra, some commutative subalgebras inside an algebra of formal iterated integrals. There is a quotient map from this algebra of f…
Multiple -values with one parameter
Frédéric Chapoton
This article introduces an algebra of functions in one variable defined by iterated integrals of two specific differential forms depending on , where the product is the shuf…
Moments of q-Jacobi Polynomials and q-Zeta Values
Frédéric Chapoton, Christian Krattenthaler, Jiang Zeng
We explore some connections between moments of rescaled little q-Jacobi polynomials, q-analogues of values at negative integers for some Dirichlet series, and the q-Eulerian polyno…
On the roots of the Poupard and Kreweras polynomials
Frédéric Chapoton, Guo-Niu Han
The Poupard polynomials are polynomials in one variable with integer coefficients, with some close relationship to Bernoulli and tangent numbers. They also have a combinatorial int…