Degenerate Canonical Forms of Ordinary Second-Order Linear Homogeneous Differential Equations. - Dimitris M. Christodoulou; Eric Kehoe; Qutaibeh Deeb Katatbeh (Axioms, 2021)

Mass Generation via the Phase Transition of the Higgs Field. - Dimitris M. Christodoulou; Demosthenes Kazanas (Axioms, 2023)