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Labs septic

In mathematics, the Labs septic surface is a degree-7 (septic) nodal surface with 99 nodes found by Labs (2006). As of 2015, it has the largest known number of nodes of a degree-7 surface, though this number is still less than the best known upper bound of 104 nodes given by Varchenko (1983).[1]

3D model of affine chart of the real Labs septic
  1. ^ The upper bound in degree 7 given by Giventalʹ (1983) is 106.

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