\Bibitem{KarKul25}
\by S.~A.~Karkuzaev, R.~Ch.~Kulaev
\paper Lower bounds for the leading eigenvalue of the Laplacian on a graph
\jour Mat. Zametki
\yr 2025
\vol 117
\issue 2
\pages 270--284
\mathnet{http://mi.mathnet.ru/mzm14338}
\crossref{https://doi.org/10.4213/mzm14338}