TerwilligerFest - Combinatorics around the q-Onsager algebra

At the conference we will be celebrating the 70th birthday of Paul Terwilliger. As such, the general theme of this conference will be the mathematical topics that Paul has worked on over the years (which all have relationships to the q-Onsager algebra). These topics include the following:

• Topics in algebraic graph theory, such as distance-regular graphs, association schemes, the subconstituent algebra, and the Q-polynomial property;

• Topics in linear algebra, such as Leonard pairs, tridiagonal pairs, billiard arrays, lowering-raising triples, and a linear algebraic approach to the orthogonal polynomials of the Askey scheme;

• Topics in Lie theory, such as the tetrahedron algebra and the Onsager algebra;

• Topics in algebras and their representations, such as the equitable presentation of Uq(sl2), the q-tetrahedron algebra, the q-Onsager algebra in mathematical physics, and the universal Askey-Wilson algebra.

There will be a welcoming reception and registration in the early evening of June 22.  Conference talks will begin the morning of June 23.

Date:
22/23-28 June, 2025

Location:
Ramada Resort, Kranjska gora, Slovenia


(Source: kranjska-gora.si, photo: Jezero Jasna)

Scientific committee: 

Štefko Miklavič (University of Primorska, Andrej Marušič Institute, Slovenia) 
Contact: stefko.miklavic@upr.si

Mark MacLean (Mathematics department, Seattle University, USA)
Contact: macleanm@seattleu.edu


Organizing committee: Blas Fernandez, Giusy Monzillo, Safet Penjić