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    <title><string language="fre"><![CDATA[Antonio Lerario - Variational methods for sub-Riemannian geodesics]]></string></title>
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        <string language="fre"><![CDATA[I will report on recent progress on the problem of the existence of sub-Riemannian geodesics. Compared to the classical Riemannian case, I will show how here new features appear, due to the more sophisticated structure of the set of admissible curves and the possible existence of singular (also called "abnormal") curves. 
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