Orientation data for moduli spaces of coherent sheaves over Calabi–Yau 3-folds
<p>Let X be a compact Calabi–Yau 3-fold, and write M,M for the moduli stacks of objects in coh(X), Dbcoh(X). There are natural line bundles KM → M, KM → M, analogues of canonical bundles. Orientation data on M,M is an isomorphism class of square root line bundles K1/2 M , K1/2 M , satisfying a...
Main Authors: | , |
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Format: | Journal article |
Language: | English |
Published: |
Elsevier
2021
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