Shift operators and toric mirror theorem
arXiv:1411.6840 · doi:10.2140/gt.2017.21.315
Abstract
We give a new proof of Givental's mirror theorem for toric manifolds using shift operators of equivariant parameters. The proof is almost tautological: it gives an A-model construction of the I-function and the mirror map. It also works for non-compact or non-semipositive toric manifolds.
24 pages, v2: I corrected a mistake in the differential equation for Upsilon; proof simplified a little