Centre for Mathematics, University of Coimbra

Seminars

Gap labelling for periodic Jacobi matrices on trees

2024-09-24

Speaker: Barry Simon (Caltech, USA)

I will present a new and simple proof (published with Banks, Breuer, Garza Vargas and Seelig) of Sunada's gap labelling for periodic Jacobi matrices on trees. I will discuss what periodic Jacobi matrices on trees are and the historical background of the result as well as present...

Matrix orthogonal polynomials: an exceptional example.

2024-10-23

Speaker: Erik Koelink (Radboud Universiteit, Netherlands)

TBA...