The admissible cone metric count conjecture for cyclically branched coverings

Let XX be a dd-fold cyclically branched covering over an nn-punctured sphere, defined by branching indices (d1,,dn)(d_1,\ldots,d_n), and let gg be the genus of XX. For an integer aa, define

a(d1,,dn):=(ad1(modd),,adn(modd)).a(d_1,\ldots,d_n):=(a\cdot d_1\pmod d,\ldots,a\cdot d_n\pmod d).

Admissible cone metric count conjecture. There are at least gg admissible cone metrics of the form a(d1,,dn)a(d_1,\ldots,d_n).

This claim concerns the number of admissible cone metrics available for constructing a basis of holomorphic 11-forms on the covering. The surrounding examples show that different admissible metrics can sometimes determine the same branching data modulo dd; the source does not provide a resolution of the conjecture.

Sources & referencesView supporting material

Primary source

Dami Lee, “Geometric Realizations of Cyclically Branched Coverings over Punctured Spheres”, arXiv:1809.06321 (2018).

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