Invariants of hypergeometric groups for Calabi-Yau complete intersections in weighted projective spaces
Communications in Number Theory and Physics, ISSN: 1931-4523, Vol: 7, Issue: 2, Page: 327-359
2013
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Article Description
Let Y be a Calabi-Yau complete intersection in a weighted projective space. We show that the space of quadratic invariants of the hypergeometric group associated with the twisted I-function is onedimensional, and spanned by the Gram matrix of a split-generator of the derived category of coherent sheaves on Y with respect to the Euler form.
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