Slimness of graphs. - Feodor F. Dragan; Abdulhakeem Mohammed (Discret. Math. Theor. Comput. Sci., 2019)

Fellow Travelers Phenomenon Present in Real-World Networks. - Abdulhakeem Othman Mohammed; Feodor F. Dragan; Heather M. Guarnera (COMPLEX NETWORKS, 2021)

Fast Approximation and Exact Computation of Negative Curvature Parameters of Graphs. - Jérémie Chalopin; Victor Chepoi; Feodor F. Dragan; Guillaume Ducoffe; Abdulhakeem Mohammed; Yann Vaxès (Discret. Comput. Geom., 2021)