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University of Cambridge > Talks.cam > Algebraic Geometry Seminar > Mirrors of the Johnson-Kollár series

## Mirrors of the Johnson-Kollár seriesAdd to your list(s) Download to your calendar using vCal - Giulia Gugiatti, Imperial College London
- Wednesday 22 January 2020, 14:15-15:15
- CMS MR13.
If you have a question about this talk, please contact Dhruv Ranganathan. I will construct LG mirrors for the Johnson-Kollár series of anticanonical del Pezzo surfaces in weighted projective 3-spaces. The main feature of these surfaces is that their anticanonical linear system is empty. Thus they fall outside of the range of the known mirror constructions. For each of these surfaces, the LG mirror is a pencil of hyperelliptic curves. I will exhibit the regularised I-function of the surface as a period of the pencil and I will sketch how to construct the pencil starting from a work of Beukers, Cohen, and Mellit on finite hypergeometric functions. This is joint work with Alessio Corti. This talk is part of the Algebraic Geometry Seminar series. ## This talk is included in these lists:- Algebraic Geometry Seminar
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