Roger Casals

Letter from the Editor, Winter 2026

Gentle reader, you are reading the second issue of our new quarterly newsletter!  As you may have noticed, the format of our newsletter has changed.  We have retired our annual printed newsletter and hope you are enjoying our new digital quarterly newsletter.  We encourage you to comment and make suggestions, especially since we are still working on the format of the digital newsletter and eager to improve.

2024-25 Notables

Wein and Iyer's NSF CAREER awards. Krener recognized with Quazza Medal. Shkoller and Fraas speak at ICMP 2024. Jacob et al win 2024 Frontiers of Science Award. Vazquez elected AAAS Fellow. De Loera, Schilling, and Thomas recognized for teaching and leadership. Xu wins INFORMS award. Casals awarded MCA Prize. Shkoller to lead COMPASS team.

The Mathematics of Daily Life

On a Sunday morning in September 2023, UC Davis mathematician Roger Casals Gutiérrez was entranced by something he saw in his kitchen.

As sunlight filtered through the kitchen window, it cast its rays in a beautiful pattern on the wall. Comprised of lines, curves and points of varying illumination, the projected pattern appeared both circular and triangular, a hodgepodge of intersecting, nebulous shapes with various spots of brightness.

Joining Us: Yoon Jae Nho

Yoon Jae "Nick" Nho is a Krener Assistant Professor, mentored by Professor Roger Casals. His research is in symplectic geometry and topology, and he is interested in geometric structures that are related to physics. He received his Ph.D. from the University of Cambridge in August 2024, under the supervision of Professor Ailsa Keating. 

He is from South Korea, and his hobbies include reading books, watching films, and listening to music.