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تسجيل مستخدم جديدPropagation of well-prepared states along Martinet singular geodesics
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We prove that for the Martinet wave equation with flat metric, which a subelliptic wave equation, singularities can propagate at any speed between 0 and 1 along any singular geodesic. This is in strong contrast with the usual propagation of singularities at speed 1 for wave equations with elliptic Laplacian.
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