Lê's conjecture on equisingular deformations of plane curve singularities

Let (V(f),\0)(C3,\0)(V(f),\0) \subseteq ({\mathbb C}^3,\0) be a reduced hypersurface with dim\0Σf=1\dim_\0 \Sigma f=1, and suppose that the normalization of V(f)V(f) is a bijection. Lê's conjecture. Then V(f)V(f) is the total space of an equisingular deformation of plane curve singularities. This conjecture concerns the geometric significance of simultaneous normalization for parameterized surfaces and its relation to equisingularity; the source poses it in connection with the perverse sheaf Gr0WQV(f)[2]\operatorname{Gr}_0^W {\mathbb Q}_{V(f)}^\bullet[2].

Sources & referencesView supporting material

Primary source

Brian Hepler, “The Weight Filtration on the Constant Sheaf on a Parameterized Space”, arXiv:1811.04328 (2019).

Additional references

2 papers in this index state this conjecture (2017–2018). The statement above is taken from the most recent of them; the others are arXiv:1711.11134.

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