Almost Periodicity in Aperiodic Order (22w2232)


Nicolae Strungaru (MacEwan University)

Michael Baake (Bielefeld University)

Natalie Frank (Vassar college)


The Banff International Research Station will host the "Almost Periodicity in Aperiodic Order" workshop in Banff from September 9, 2022 to September 11, 2022.

The theory of Aperiodic Order was stimulated by the discovery of quasicrystals in 1980s by Dan Shechtman, a discovery for which he was awarded the 2011 Nobel Prize in Chemistry. It built upon groundbreaking work of Yves Meyer and Roger Penrose from the 1970s, and major contributions were made by Jeffrey Lagarias and Robert Moody in the 1990s.

This area of mathematics studies systems with long-range order, typically manifested by a large Bragg diffraction spectrum, but without translation symmetries. It connects seemingly different areas of mathematics, such as harmonic analysis, dynamical systems and ergodic theory, spectral theory, discrete geometry and Fourier analysis, to name just a few. This meeting will focus on the recent developments regarding the connection between almost periodicity, dynamical systems and aperiodic order.

This meeting is dedicated to the memory of our colleague Uwe Grimm, who unexpectedly passed away last year.

The Banff International Research Station for Mathematical Innovation and Discovery (BIRS) is a collaborative Canada-US-Mexico venture that provides an environment for creative interaction as well as the exchange of ideas, knowledge, and methods within the Mathematical Sciences, with related disciplines and with industry. The research station is located at The Banff Centre in Alberta and is supported by Canada's Natural Science and Engineering Research Council (NSERC), the U.S. National Science Foundation (NSF), Alberta's Advanced Education and Technology, and Mexico's Consejo Nacional de Ciencia y Tecnología (CONACYT).