A Hessenberg Generalization of the Garsia-Procesi Basis for the Cohomology Ring of Springer Varieties. - Aba Mbirika (Electron. J. Comb., 2010)

Coprime and Prime Labelings of Graphs. - Adam H. Berliner; Nathaniel Dean; Jonelle Hook; Alison Marr; Aba Mbirika; Cayla D. McBee (J. Integer Seq., 2016)

Lattice Point Visibility on Generalized Lines of Sight. - Edray Goins; Pamela E. Harris; Bethany Kubik; Aba Mbirika (Am. Math. Mon., 2018)

An Euler Phi Function for the Eisenstein Integers and Some Applications. - Emily Gullerud; aBa Mbirika (Integers, 2020)