Density of states of randomly sprinkled graphs
Oberseminar Darmstadt
Date: 23.04.2026
Time: 16:15–17:45 h
We randomly perturb a large graph G in a natural manner: independently and identically distributed at every vertex x of G, we draw a random family of rooted graphs and connect x to the root of each graph in the family. We study the density of states (DOS) of the resulting sprinkled graph in the limit of large G. By relating our model to both site percolation as well as the Anderson model on G, we analyze the atoms and the support of the DOS. We derive an expansion of the DOS in the limit of sparse sprinkling. Based on joint work with Antti Knowles.
Speaker
- Steffen Polzer, Université de Genève
Place
- TU Darmstadt S2|15 Raum 401
- Schlossgartenstr. 7, 64289 Darmstadt
Organizers
- Technische Universität Darmstadt
Fachbereich Mathematik - Stochastik
Schlossgartenstraße 7
64289 Darmstadt
Telefon: +49 6151 16-23380
Telefax: +49 6151 16-23381
info(at)stochastik-rhein-mainde
Organizing partners
Goethe-Universität Frankfurt am Main, Johannes Gutenberg-Universität Mainz, Justus-Liebig-Universität Gießen