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Two-dimensional almost-Riemannian structures with tangency points - MaRDI portal

Two-dimensional almost-Riemannian structures with tangency points (Q975289)

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Two-dimensional almost-Riemannian structures with tangency points
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    Two-dimensional almost-Riemannian structures with tangency points (English)
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    9 June 2010
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    topological invariants
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    Lie bracket
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    Euler number
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    Gauss-Bonnet formula
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