The conjecture on tangent cones and metric density of log Kähler–Einstein limits
The conjecture on tangent cones and metric density of log Kähler–Einstein limits
Let be a Gromov–Hausdorff limit of log Fano pairs admitting a Kähler–Einstein metric. For a point of this metric space, let the metric tangent cone at and its metric density be denoted by the corresponding tangent-cone notation and , and let denote the normalised volume of the singularity.
Tangent-cone conjecture. The following properties hold:
- For every point , the metric tangent cone at is unique.
- The metric density satisfies
- The metric tangent cone admits an algebraic interpretation via the two-step construction.
These are proposed as log-setting analogues of results known in the absolute case. The source says that the picture is incomplete, in particular because the corresponding tangent-cone results for log pairs were not yet proved.
Sources & referencesView supporting material
Primary source
Patricio Gallardo, Jesus Martinez-Garcia and Cristiano Spotti, “Applications of the moduli continuity method to log K-stable pairs”, arXiv:1811.00088 (2020).
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