  Localization methods have produced explicit expressions for the sphere
partition functions of (2,2) superconformal field theories. The mirror symmetry
conjecture predicts an IR duality between pairs of Abelian gauged linear sigma
models, a class of which describe families of Calabi-Yau manifolds realizable
as complete intersections in toric varieties. We investigate this prediction
for the sphere partition functions and find agreement between that of a model
and its mirror up to the scheme-dependent ambiguities inherent in the
definitions of these quantities.
