Abstract
Two graphs are cospectral if their respective adjacency matrices have the same multiset of eigenvalues. Cospectrality is an equivalence relation on graphs with many interesting facets. Isomorphic graphs are necessarily cospectral but the converse is not always true, thus cospectrality is a coarser relation than graph isomorphism. Here we study cospectrality from the point of view of pebble games, which are certain type of combinatorial games used in Finite Model Theory to capture the notion of elementary equivalence induced by various logic.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
