Laplacian eigenvectors of graphs

BIYIKOĞLU, Türker - LEYDOLD, Josef - STADLER, Peter F. Laplacian eigenvectors of graphs : Perron-Frobenius and Faber-Krahn type theorems. [1st ed.]. Berlin : Springer, 2007. viii; 115 s. Lecture Notes in Mathematics, 1915. ISBN 978-3-540-73509-0.