Frieze patterns are interesting combinatorial objects introduced by Coxeter. Recently they have attracted much attention due to their relation with the theory of cluster algebras. I shall introduce frieze patterns and prove the theorem of Conway and Coxeter that relates arithmetical frieze patterns with triangulations of polygons. There is an intimate, and somewhat unexpected, relation between three object: frieze patterns, 2nd order linear difference equations, and polygons in the projective line. I shall describe some recent work on frieze patterns, including an interpretation of frieze patterns as a discretization of a coadjoint orbit of the Virasoro algebra.
Mittwoch, den 17. Juli 2019 um 11.00-13.00 Uhr Uhr, in Mathematikon, INF 205, SR 9 Mittwoch, den 17. Juli 2019 at 11.00-13.00 Uhr, in Mathematikon, INF 205, SR 9
Der Vortrag folgt der Einladung von The lecture takes place at invitation by Prof. Peter Albers