On the action of the symmetric group on the Free Lie Algebra and the partition lattice. - Hélène Barcelo (J. Comb. Theory A, 1990)

The Orlik-Solomon algebra on the partition lattice and the free Lie algebra. - Hélène Barcelo; Nantel Bergeron (J. Comb. Theory A, 1990)

Modular elements in the lattice L(A) when A is a real reflection arrangement. - Hélène Barcelo; Edwin C. Ihrig (Discret. Math., 1998)

Foundations of a Connectivity Theory for Simplicial Complexes. - Hélène Barcelo; Xenia H. Kramer; Reinhard C. Laubenbacher; Christopher Weaver 002 (Adv. Appl. Math., 2001)

On Counting Permutations by Pairs of Congruence Classes of Major Index. - Hélène Barcelo; Robert Maule; Sheila Sundaram (Electron. J. Comb., 2002)

Editors' preface. - Hélène Barcelo; Joseph P. S. Kung; Volkmar Welker (Adv. Appl. Math., 2003)

Perspectives on A-homotopy theory and its applications. - Hélène Barcelo; Reinhard C. Laubenbacher (Discret. Math., 2005)

Dedication. - Hélène Barcelo (J. Comb. Theory A, 2006)

Counting permutations by congruence class of major index. - Hélène Barcelo; Bruce E. Sagan; Sheila Sundaram (Adv. Appl. Math., 2007)

The discrete Fundamental Group of the Associahedron, and the Exchange Module. - Hélène Barcelo; Christopher Severs; Jacob A. White 001 (Int. J. Algebra Comput., 2013)

Group size effect on cooperation in social dilemmas. - Hélène Barcelo; Valerio Capraro (CoRR, 2014)

Group size can have positive, negative, or even curvilinear effect on cooperation depending on how the benefit for full cooperation varies as a function of the group size. - Valerio Capraro; Hélène Barcelo (CoRR, 2015)

Fifty years of The Journal of Combinatorial Theory. - Hélène Barcelo; Bruce Rothschild; S. Ole Warnaar (J. Comb. Theory A, 2016)

Algebraic voting theory & representations of Sm≀Sn. - Hélène Barcelo; Megan Bernstein; Sarah Bockting-Conrad; Erin McNicholas; Kathryn L. Nyman; Shira Viel (Adv. Appl. Math., 2020)

Punishing defectors and rewarding cooperators: Do people discriminate between genders? - Hélène Barcelo; Valerio Capraro (CoRR, 2020)

Homology Groups of Cubical Sets with Connections. - Hélène Barcelo; Curtis Greene; Abdul Salam Jarrah; Volkmar Welker (Appl. Categorical Struct., 2021)

On the Vanishing of Discrete Singular Cubical Homology for Graphs. - Hélène Barcelo; Curtis Greene; Abdul Salam Jarrah; Volkmar Welker (SIAM J. Discret. Math., 2021)