I am working on a Natural Sciences related project, which involves graph theory. I have calculated the Laplacian and Adjacency spectra of my graphs and now have to interpret it.
However, I am not a mathematician and most books, that I have found, have quite a lot of proofs and theorems, which are indeed interesting, but not necessary for the interpretation of a spectra.
Maybe someone could recommend a book or an article that deals with the interpretation of the spectra? I am mostly interested in overall connectivity, topology, cycles, small-world or random structures and properties like that determination from the spectra of a graph.
You can go through the book by R.B. Bapat, the third link.