TY  - JOUR
AU  - Altafini, Claudio
TI  - Reduction by group symmetry of second order variational problems on a semidirect product of Lie groups with positive definite riemannian metric
JO  - ESAIM: Control, Optimisation and Calculus of Variations
PY  - 2004
SP  - 526
EP  - 548
VL  - 10
IS  - 4
PB  - EDP-Sciences
UR  - http://archive.numdam.org/articles/10.1051/cocv:2004018/
DO  - 10.1051/cocv:2004018
LA  - en
ID  - COCV_2004__10_4_526_0
ER  -