Eigenspaces of symmetric graphs are not typically irreducible
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© 2018, Springer Science+Business Media B.V., part of Springer Nature. We construct rich families of Schrödinger operators on symmetric graphs, both quantum and combinatorial, whose spectral degeneracies are persistently larger than the maximal dimension of an irreducible representation of the symmetry group.
author list (cited authors)
Berkolaiko, G., & Liu, W.