Deformations of equivelar Stanley-Reisner abelian surfaces

Details Deformations of equivelar Stanley-Reisner abelian surfaces Deformations of equivelar Stanley-Reisner abelian surfaces

2010-03-21

arxiv.org/abs/1003.4004v2

Mathematics

Algebraic Geometry

Revised version. Small improvements. Added drawings

Scientific paper

The versal deformation of Stanley-Reisner schemes associated to equivelar triangulations of the torus is studied. The deformation space is defined by binomials and there is a toric smoothing component which I describe in terms of cones and lattices. Connections to moduli of abelian surfaces are considered. The case of the M\"obius torus is especially nice and leads to a projective Calabi-Yau 3-fold with Euler number 6.

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