%0 Journal Article %A M. Keller %A D. Lenz %T Unbounded Laplacians on Graphs: Basic Spectral Properties and the Heat Equation %J Mathematical modelling of natural phenomena %D 2010 %P 198-224 %V 5 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1051/mmnp/20105409/ %R 10.1051/mmnp/20105409 %G en %F MMNP_2010_5_4_a9