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Periodic geodesics for contact 3D sub-Riemannian manifolds. Yves Colin de Verdiere Institut NÉEL, CNRS and Université Joseph Fourier |
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Website: https://us06web.zoom.us/j/84704253405?pwd=M1dBejE1Rmp5SlUvYThvZzM3UnlvZz09 |
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