Zaslow's crepant-resolution conjecture for stringy Hodge numbers

Let XX be a smooth Calabi–Yau manifold with an action of a finite group HH preserving the holomorphic volume form, let Y=X/HY=X/H, and let hstp,q(Y)h_{st}^{p,q}(Y) denote its stringy Hodge numbers. A resolution ZX/HZ\to X/H is crepant when its canonical divisor is the pullback of the canonical divisor of X/HX/H. Zaslow's conjecture. If ZX/HZ\to X/H is any crepant resolution of X/HX/H, then

hp,q(Z)=hstp,q(X/H).h^{p,q}(Z)=h_{st}^{p,q}(X/H).

This conjecture predicts that the stringy Hodge numbers of a quotient agree with the ordinary Hodge numbers of every crepant resolution, generalizing the corresponding equality for stringy and ordinary Euler characteristics. The supplied text gives no resolution status.

Sources & referencesView supporting material

Primary source

Jim Bryan, Ron Donagi and Naichung Conan Leung, “G-bundles on Abelian surfaces, hyperkahler manifolds, and stringy Hodge numbers”, arXiv:math/0004159 (2000).

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