Ingeometryprocessingandshapeanalysis,severalapplicationshavebeenaddressedthroughthepropertiesoftheLaplacianspectralkernelsanddistances,suchascommutetime,biharmonic,diffusion,andwavedistances.Withinthiscontext,thisbookisintendedtoprovideacommonbackgroundonthedefinitionandcomputationofthe