1/21 at 1:30 p.m. The two weekly Tuesday seminars, OT & MP have their Organizational meeting in 309 Van, the Physics building, on 1/21 at 1:30 p.m. This semester's weekly seminars, Mathematical Physics, MP;  and Operator Theory OT,  will resume, and will be at the usual times, back to back, 1:30 for OT and 2:30 for MP on Tuesdays, and place (309 Van, the Physics building). Everyone is welcome.

Title:  The Beauty of the Kaczmarz Algorithm. Abstract: Stefan Kaczmarz introduced a method for solving systems of linear equations in 1939 that now bears his name. Remarkably, his idea was quite elementary and yet quite profound. The Kaczmarz algorithm has appeared in numerous contexts, including computerized tomography, optimization, data science, as well as harmonic analysis and operator theory. We'll discuss some of the history of the method in various guises as well as my own interest in...

The Great Plains Operator Theory Symposium. From a modest beginning in 1981, the Great Plains Operator Theory Symposium (GPOTS) has become a major annual conference. It rotates between Universities in the U.S., with a new host university every year, and with NSF funding. For Spring 2026, it will be at the University of Iowa, a founding university. By now, GPOTS has evolved into a major international conference on operator theory and operator algebras. The symposium focuses on recent developments in Operator Algebras and Operator Theory. At the conference, leading researchers will discuss important new developments, new directions, and will propose problems for future research.