Communications in Number Theory and Physics
Volume 7 (2013)
Invariants of hypergeometric groups for Calabi-Yau complete intersections in weighted projective spaces
Pages: 327 – 359
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 one-dimensional, 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.