needed to make Dirichlet's principle watertight: that the solution of Laplace's equation with given boundary values 'ought' to be the one which minimises j |grad u (x)\ dx. Jost fleshes out the… Expand

This text is based on the full-year PhD qualifying course on differentiable manifolds, global calculus, differential geometry and related topics, given by the author at Washington University. It… Expand

The aggregate-disaggregate-aggregate freight models that have been developed in Norway and Sweden take into account the logistic decisions at firm level. The Swedish model is documented in i.e. the… Expand