Topical Collection Created in Honor of Retirement of Distinguished Professor in Mathematics

The journal Complex Analysis and Operator Theory recently honored the retirement of John Ryan, Distinguished Professor of mathematics, with a topical collection of research articles.

This collection celebrates Ryan's significant contributions to Clifford Analysis and the theory of Dirac operators over his 40-year career. His prolific work includes over 80 research articles and the mentorship of six Ph.D. students. The collection is based on the "Analysis of Dirac Type and Higher Spin Operators Conference: Honoring John Ryan," held at Chapman University from Nov. 11-13, 2022.