Spectra and Eigenspaces of Arbitrary Lifts of Graphs

Dalfo, C.; Fiol, M. A.; Pavlikova, S. and Širáň, Jozef (2019). Spectra and Eigenspaces of Arbitrary Lifts of Graphs. Acta Mathematica Universitatis Comenianae, 88(3) pp. 593–600.

URL: http://www.iam.fmph.uniba.sk/amuc/ojs/index.php/am...

Abstract

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).

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