Smooth approximation of polyhedral metric!












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do someone have an idea, how to prove that :



For every polyhedral metric $(S,d)$ of curvature $leq -1$, (S=surface), there exists a sequence of smooth metrics, converging uniformly to $(S,d)$.



And why the metric in the neigbourhood of any singularity will be of the shape $dr^2+f^2(r)dphi^2$ with $f$ a suitable function.



Thnak you for any answer










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    0














    do someone have an idea, how to prove that :



    For every polyhedral metric $(S,d)$ of curvature $leq -1$, (S=surface), there exists a sequence of smooth metrics, converging uniformly to $(S,d)$.



    And why the metric in the neigbourhood of any singularity will be of the shape $dr^2+f^2(r)dphi^2$ with $f$ a suitable function.



    Thnak you for any answer










    share|cite|improve this question

























      0












      0








      0







      do someone have an idea, how to prove that :



      For every polyhedral metric $(S,d)$ of curvature $leq -1$, (S=surface), there exists a sequence of smooth metrics, converging uniformly to $(S,d)$.



      And why the metric in the neigbourhood of any singularity will be of the shape $dr^2+f^2(r)dphi^2$ with $f$ a suitable function.



      Thnak you for any answer










      share|cite|improve this question













      do someone have an idea, how to prove that :



      For every polyhedral metric $(S,d)$ of curvature $leq -1$, (S=surface), there exists a sequence of smooth metrics, converging uniformly to $(S,d)$.



      And why the metric in the neigbourhood of any singularity will be of the shape $dr^2+f^2(r)dphi^2$ with $f$ a suitable function.



      Thnak you for any answer







      semi-riemannian-geometry






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      share|cite|improve this question











      share|cite|improve this question




      share|cite|improve this question










      asked Nov 26 at 11:06









      kamerove

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