Cut time in sub-riemannian problem on engel group
ESAIM: Control, Optimisation and Calculus of Variations, Tome 21 (2015) no. 4, pp. 958-988
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The left-invariant sub-Riemannian problem on the Engel group is considered. The problem gives the nilpotent approximation to generic rank two sub-Riemannian problems on four-dimensional manifolds. The global optimality of extremal trajectories is studied via geometric control theory. The global diffeomorphic structure of the exponential mapping is described. As a consequence, the cut time is proved to be equal to the first Maxwell time corresponding to discrete symmetries of the exponential mapping.
Reçu le :
DOI : 10.1051/cocv/2015027
DOI : 10.1051/cocv/2015027
Classification :
22E25, 58E25
Keywords: Sub-Riemannian geometry, optimal control, Engel group, Lie algebra, Maxwell time, cut time, exponential mapping, Euler’s elastica
Keywords: Sub-Riemannian geometry, optimal control, Engel group, Lie algebra, Maxwell time, cut time, exponential mapping, Euler’s elastica
Affiliations des auteurs :
Ardentov, A.A. 1 ; Sachkov, Yu.L. 1
@article{COCV_2015__21_4_958_0,
author = {Ardentov, A.A. and Sachkov, Yu.L.},
title = {Cut time in sub-riemannian problem on engel group},
journal = {ESAIM: Control, Optimisation and Calculus of Variations},
pages = {958--988},
year = {2015},
publisher = {EDP-Sciences},
volume = {21},
number = {4},
doi = {10.1051/cocv/2015027},
mrnumber = {3395751},
zbl = {1330.53044},
language = {en},
url = {http://geodesic.mathdoc.fr/articles/10.1051/cocv/2015027/}
}
TY - JOUR AU - Ardentov, A.A. AU - Sachkov, Yu.L. TI - Cut time in sub-riemannian problem on engel group JO - ESAIM: Control, Optimisation and Calculus of Variations PY - 2015 SP - 958 EP - 988 VL - 21 IS - 4 PB - EDP-Sciences UR - http://geodesic.mathdoc.fr/articles/10.1051/cocv/2015027/ DO - 10.1051/cocv/2015027 LA - en ID - COCV_2015__21_4_958_0 ER -
%0 Journal Article %A Ardentov, A.A. %A Sachkov, Yu.L. %T Cut time in sub-riemannian problem on engel group %J ESAIM: Control, Optimisation and Calculus of Variations %D 2015 %P 958-988 %V 21 %N 4 %I EDP-Sciences %U http://geodesic.mathdoc.fr/articles/10.1051/cocv/2015027/ %R 10.1051/cocv/2015027 %G en %F COCV_2015__21_4_958_0
Ardentov, A.A.; Sachkov, Yu.L. Cut time in sub-riemannian problem on engel group. ESAIM: Control, Optimisation and Calculus of Variations, Tome 21 (2015) no. 4, pp. 958-988. doi: 10.1051/cocv/2015027
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