We describe, in a very explicit way, a method for determining the spectra and bases of all the corresponding eigenspaces of arbitrary lifts of graphs (regular or not).
he first author has received funding from the European Union’s Horizon 2020 research and innovationprogramme under the Marie Skłodowska-Curie Grant Agreement No. 734922.
Inglés
Graph; Covering; Lift; Spectrum; Eigenspace
Springer
Reproducció del document publicat a: https://doi.org/10.1007/s10801-021-01049-3
Journal of Algebraic Combinatorics, 2021, vol. 54, p. 651-672
info:eu-repo/grantAgreement/EC/H2020/734922/EU/CONNECT
cc-by (c) Dalfó et al., 2021
http://creativecommons.org/licenses/by/4.0/
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