We present and compare several algorithms for evaluating Jacquet's Whittaker functions for SL(3,ℤ). The most suitable algorithm is then applied to the problem of evaluating a Maass form for SL(3,ℤ) ...

We develop parametric classes of covariance functions on linear networks and their extension to graphs with Euclidean edges, that is, graphs with edges viewed as line segments or more general sets ...