Laplacian Eigenvectors of Graphs Perron-Frobenius and Faber-Krahn Type Theorems

From the reviews:

"This is an interesting … book about a very specialized topic in spectral graph theory, namely the eigenvectors of the (generalized) Laplacian matrices of graphs. … Overall I found the book well worth reading, with a clear and novel presentation of some interesting ideas." (Gordon F. Royle, Mathematical Reviews, Issue 2009 a)

"The present book covers a narrow topic on the border of graph theory, geometry and analysis. … The intended readership is broad. … The presentation is … clear. It is certainly stimulating and well worth to read for graduate students or researchers who encounter eigenvectors connected to discrete or continuous/geometrical structures." (Péter Hajnal, Acta Scientiarum Mathematicarum, Vol. 75, 2009)