We present Golyshev's modularity conjecture that states that the counting equations for Fano threefolds with Picard group
(which codes their Gromov-Witten invariants) are modular. To check it we find Gromov-Witten infariants of them. For this we generalise Givental's Theorem (in the Fano case) that gives us Gromov-Witten invariants for complete intersections in toric varieties with non-negative canonical bundle.
REFERENCES:
- V. Golyshev, The geometricity problem and modularity of some Riemann-Roch variations, Dokl. Akad. Nauk 386 (2002) 583-588.
- V. Przyjalkowski, Quantum cohomology of smooth complete intersections in weighted projective spaces and singular toric varieties, math.AG/0507232.
- A. Givental, A mirror theorem for toric complete intersections, Topological field theory, primitive forms and related topics (Kyoto, 1996), 141-175, alg-geom/9701016