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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

For this event, no registration is necessary. PDF- Link