Proof of a conjecture on the algebraic connectivity of a graph and its complement. - Mostafa Einollahzadeh; Mohammad Mahdi Karkhaneei (CoRR, 2019)

Nonconvex Weak Sharp Minima on Riemannian Manifolds. - Mohammad Mahdi Karkhaneei; Nezam Mahdavi-Amiri (J. Optim. Theory Appl., 2019)

Proof of a conjecture on the Seidel energy of graphs. - Saieed Akbari; Mostafa Einollahzadeh; Mohammad Mahdi Karkhaneei; Mohammad Ali Nematollahi (Eur. J. Comb., 2020)

On the lower bound of the sum of the algebraic connectivity of a graph and its complement. - Mostafa Einollahzadeh; Mohammad Mahdi Karkhaneei (J. Comb. Theory B, 2021)