2 citations · 4 across the 10 of their papers we have counts for
5 papers · 1 filter
Le cocycle du verger
Roland Bacher
We define and prove uniqueness of a natural homomorphism (called the Orchard morphism) from some groups associated naturally to a finite set to the group of t…
Counting Triangulations of Configurations
Roland Bacher
After defining convex near-polygons, a formula enumerating the number of triangulations of such configurations is derived in terms of edge-polynomials. The paper describes also a t…
The Orchard Morphism
Roland Bacher
We describe and prove uniqueness of a natural homomorphism between some groups associated to finite sets.
The Orchard relation of a generic symmetric or antisymmetric function
Roland Bacher
We associate to certain symmetric or antisymmetric functions on the set of subsets in a finite set an equivalence relation on and study some of its…
Symmetric Pascal matrices modulo p
Roland Bacher, Robin Chapman
We study characteristic polynomials of symmetric matrices with entries the binomial coefficients, over finite fields.