Algebraic Graph Theory International Webinar (21.2.2023)
v utorok 21.2.2023 o 19:00 hod.
The organizers of the Algebraic Graph Theory International Webinar would like to invite you to join us and other colleagues on February 21, 2023, at 7pm Central European Summer Time (= 6pm UTC), for the next presentation delivered by Egon Schulte.
The title: Skeletal Polyhedra, Complexes, and Symmetry
Abstract:
The study of highly symmetric structures in Euclidean 3-space has a long and fascinating history tracing back to the early days of geometry. With the passage of time, various notions of polyhedral structures have attracted attention and have brought to light new exciting figures intimately related to finite or infinite groups of isometries. A radically different, skeletal approach to polyhedra was pioneered by Grunbaum in the 1970's building on Coxeter's work. A polyhedron is viewed not as a solid but rather as a finite or infinite periodic geometric edge graph in space equipped with additional polyhedral super-structure imposed by the faces. Since the mid 1970's there has been a lot of activity in this area. Much work has focused on classifying skeletal polyhedra and complexes by symmetry, with the degree of symmetry defined via distinguished transitivity properties of the geometric symmetry groups. These skeletal figures exhibit fascinating geometric, combinatorial, and algebraic properties and include many new finite and infinite structures.
The Zoom link for this semester is:
https://cuaieed-unam.zoom.us/j/87193320713?pwd=cHpiWUtYWlUvWHZjdGZteSt1QmZ5UT09
Meeting ID: 871 9332 0713
Passcode: 653250
Further details may be found at http://euler.doa.fmph.uniba.sk/AGTIW.html
where you can also find the slides and the recordings of our previous presentations. Also, if you wish to advertise an AGT friendly conference on this page, please send us the link.
Hoping to see you at the webinar, and wishing you all the best.
Isabel Hubard, Robert Jajcay and Primoz Potocnik