Extremal trajectories in a nilpotent sub-Riemannian problem on the Engel group
2011 ◽
Vol 202
(11)
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pp. 1593-1615
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2007 ◽
Vol 10
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pp. 341-353
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2017 ◽
Vol 22
(8)
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pp. 909-936
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2018 ◽
Vol 25
(3)
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pp. 377-402
2018 ◽
pp. 21-76
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2020 ◽
Vol 17
(12)
◽
pp. 2050181