Discrepancy (algebraic geometry)

In algebraic geometry, given a pair (X, D) consisting of a normal variety X and a $\mathbb{Q}$-divisor D on X (e.g., canonical divisor), the discrepancy of the pair (X, D) measures the degree of the singularity of the pair.

See also

• Canonical singularity
• Crepant resolution

References

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