Q: tensor field operators inc, div, def

*To*: mathgroup at christensen.cybernetics.net*Subject*: [mg2031] Q: tensor field operators inc, div, def*From*: u7f01bf at sun2.lrz-muenchen.de ()*Date*: Sat, 16 Sep 1995 01:40:27 -0400*Organization*: Leibniz-Rechenzentrum, Muenchen (Germany)

Who knows how to define the opreators def(u), inc(b), div(b), u beeing a vector field, b beeing a tensor field? inc b = \nabla x b x \nabla or (inc b)_{nm} = e_{mki} e_{nlj} d_{k} d_{l} b_{ij},e_{mki} beeing the totally antisymmetric unit tensor. div a_{ij} = d_{i} a{ij} def u_{i} = d_{j} u_{i} I tried to copy the <<Calculus`VectorAnalysis` syntax, but it didn't work. Thanks in advance Alexander Unzicker sascha at space.imp.med.uni-muenchen.de u7f01bf at sunmail.lrz-muenchen.de