181 citations · 771 across the 48 of their papers we have counts for
3 papers · 1 filter
A geometric construction of isospectral magnetic graphs
John Stewart Fabila-Carrasco, Fernando Lledó, Olaf Post
We present a geometrical construction of families of finite isospectral graphs labelled by different partitions of a natural number of given length (the number of summands)…
Isospectral graphs via spectral bracketing
Fernando Lledó, John S. Fabila-Carrasco, Olaf Post
In this article, we develop a perturbative technique to construct families of non-isomorphic discrete graphs which are isospectral for the standard (also called normalised) Laplaci…
Generalised norm resolvent convergence: comparison of different concepts
Olaf Post, Sebastian Zimmer
In this paper, we show that the two concepts of generalised norm resolvent convergence introduced by Weidmann and the first author of this paper are equivalent. We also focus on th…