Uniform boundedness conjecture for minimal log discrepancies of Kollár components

About 3 years old · traced to

Fix n∈Nn\in\mathbb{N}, ε>0\varepsilon>0, and let I⊆[0,1]I\subseteq [0,1] be a finite set. For a klt singularity x∈(X,Δ)x\in (X,\Delta), let mld⁡K(x,X,Δ)\operatorname{mld}^{\mathrm{K}}(x,X,\Delta) denote its minimal log discrepancy computed among Kollár components, and let vol⁡^(x,X,Δ)\widehat{\operatorname{vol}}(x,X,\Delta) denote its local volume. Uniform boundedness conjecture. There exists a constant AA, depending only on nn, ε\varepsilon, and II, such that

mld⁡K(x,X,Δ)≤A\operatorname{mld}^{\mathrm{K}}(x,X,\Delta)\leq A

for every nn-dimensional klt singularity x∈(X,Δ)x\in (X,\Delta) satisfying Coef⁡(Δ)⊆I\operatorname{Coef}(\Delta)\subseteq I and vol⁡^(x,X,Δ)≥ε\widehat{\operatorname{vol}}(x,X,\Delta)\geq \varepsilon.

This conjecture is motivated by the paper's boundedness criterion for K-semistable log Fano cone singularities and was already raised in the cited previous work; its general resolution is not supplied here.

References

Primary source

Ziquan Zhuang, “On boundedness of singularities and minimal log discrepancies of Kollár components, II”, arXiv:2302.03841 (2023).

Progress summary

Never refreshed

Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.

Solutions 0

No solutions have been posted yet.