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