Cluster algebras constitute a robust framework at the interface of algebra, combinatorics and geometry. Since their introduction, they have provided fertile ground for understanding total positivity, ...

In my talk, I will introduce an example of a multiplier Hopf algebroid (object recently introduced by T. Timmermann and A. Van Daele) generalizing the transformation groupoids which is inspired by the ...

The study of algebraic groups and K-theory constitutes a dynamic area of research that bridges abstract algebra, topology, and number theory. Algebraic groups, defined as groups that also possess the ...