Caginalp, a Pitt professor of mathematics who did applied mathematics research relating to physics, materials science and, most recently, economics and finance, died on December 7, 2021, at age 69.
His most influential research considered differential equation models describing the energy and other properties of boundaries between two different phases (e.g., liquid and solid) in a material. He also made multiple contributions to quantitative behavioral finance, which describes various factors that influence valuations of assets. His recent studies bubbles in cryptocurrency pricing attracted significant attention. Prior to joining Pitt's Department of Mathematics in 1984, Caginalp held faculty positions at Cornell, Rockefeller and Carnegie Mellon universities.