Upcoming Talks

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Laplacians on Infinite Graphs

Mathphys Analysis Seminar

Date: Tuesday, February 20, 2024 16:15 - 17:15
Speaker: Noema Nicolussi (TU Graz)
Location: Office Bldg West / Ground floor / Heinzel Seminar Room (I21.EG.101)
Series: Mathematics and CS Seminar
Host: Jan Maas

There are two different notions of a Laplacian operator associated with infinite graphs: discrete Laplacians and quantum graphs. Both objects have a venerable history and their spectral theory relates to several diverse branches of mathematics (random walks, combinatorics, geometric group theory, ...). In our talk we explore connections between these two types of operators (spectral, parabolic and geometric properties), and exploit these relations to prove a number of new results in spectral theory for both settings. The talk is based on joint work with Aleksey Kostenko (Ljubljana&Vienna) and Mark Malamud (Donetsk).

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