Minimum supports of eigenfunctions of graphs: a survey

Authors

Ev Sotnikova Sobolev Institute of Mathematics, Russian Federation https://orcid.org/0000-0002-6914-8834
Alexandr Valyuzhenich Sobolev Institute of Mathematics, Russian Federation https://orcid.org/0000-0002-0582-6595

Eigenfunction, eigenfunctions of graphs, eigenspace, minimum support, trade, bitrade, 1-perfect bitrade, weight distribution bound

In this work we present a survey of results on the problem of finding the minimum cardinality of the support of eigenfunctions of graphs.