Vyacheslav Pyvovarchyk: Non-existence of co-spectral simple connected graphs with small number of edges
Time: Wed 2024-10-16 11.00 - 12.00
Location: Albano, house 1, floor 3, Cramérrummet
Participating: Vyacheslav Pyvovarchyk (SUNPU, Odesa and University of Vaasa)
Abstract:
We consider the Sturm-Liouville spectral problems on simple connected equilateral graphs. We prove that if the number of edges does not exceed 7 then the spectrum of the Dirichlet problem uniquely determines the shape of the graph.