Egon Balas

Egon Balas was a University Professor of Industrial Administration and Applied Mathematics, and The Thomas Lord Professor of Operations Research at Carnegie Mellon University's Tepper School of Business. He held dual Ph.D.s in economics (University of Brussels, 1967) and mathematics (University of Paris, 1968). Balas pioneered advancements in integer programming and disjunctive programming, revolutionizing optimization theory.

His early life included two imprisonments: first for opposing the Nazis via the communist party, then post-war under Stalinist purges. He fled to the West in 1956, eventually joining CMU in 1967 where he spent over five decades as a faculty member. His seminal work included the Additive Algorithm (1965) for timber-harvesting optimization and foundational contributions to disjunctive programming.

A symposium and memorial service were held at CMU in 2019 celebrating his legacy, featuring talks on topics like global optimization and machine learning applications in MIP. His books *Will to Freedom* (memoir) and *Disjunctive Programming* (technical) highlighted his dual academic and historical impact.