  Let X be a symplectic or odd orthogonal Grassmannian which parametrizes
isotropic subspaces in a vector space equipped with a nondegenerate (skew)
symmetric form. We prove quantum Giambelli formulas which express an arbitrary
Schubert class in the small quantum cohomology ring of X as a polynomial in
certain special Schubert classes, extending the cohomological Giambelli
formulas of arXiv:0811.2781.
