The Mathematics of Geometrical and Physical Optics: The k-function and its Ramifications

O. N. Stavroudis has researched and lectured in the area of the mathematics of geometrical and physical optics and their application for 50 years. He is Professor Emeritus at the Optical Sciences Center, University of Arizona, Tucson, USA, and currently works as an Investigador Titular at the Centro de Investigaciones en Optics, Leon, Guanajuato, Mexico. His research field covers differential geometry of wavefronts, k-function and Maxwell equations, wildly off-axis telescopes, generalized ray tracing and modular optical design. He published numerous reviews and contributions for books, and authored several monographs.