10 citations · 10 across the 2 of their papers we have counts for
3 papers
math.CO2007
The Discrete Fundamental Group of the Order Complex of
Hélène Barcelo, Shelly Smith
A few years ago Kramer and Laubenbacher introduced a discrete notion of homotopy for simplicial complexes. In this paper, we compute the discrete fundamental group of the order com…
math.CO2004★ 10 cited
A Homotopy Theory for Graphs
E. Babson, H. Barcelo, M. de Longueville +1
The recently introduced A-homotopy groups for graphs are investigated. The main concern of the present article is the construction of an infinite cell complex, the homotopy groups…
math.CO2001
On counting permutations by pairs of congruence classes of major index
Helene Barcelo, Robert Maule, Sheila Sundaram
For a fixed positive integer n, let S_n denote the symmetric group of n! permutations on n symbols, and let maj(sigma) denote the major index of a permutation sigma. For positive i…