Conjecture on the dimension of partial Okounkov bodies

About 5 years old · traced to

Let XX be the compact complex manifold, let θ\theta be the closed (1,1)(1,1)-form, and let θ\theta-plurisubharmonic function φ∈PSH⁡(X,θ)\varphi\in\operatorname{PSH}(X,\theta) be as above, without assuming that φ\varphi has positive volume. Define the limit partial Okounkov body by

Δ(θ,φ):=⋂ϵ∈Q>0Δ(θ+ϵω,φ).\Delta(\theta,\varphi):=\bigcap_{\epsilon\in\mathbb{Q}_{>0}}\Delta(\theta+\epsilon\omega,\varphi).

Here HH is an ample effective divisor on XX and ω∈c1(H)\omega\in c_1(H) is a Kähler form. Dimension conjecture. Under these assumptions,

dim⁡Δ(θ,φ)=nd⁡(θ,φ).\dim\Delta(\theta,\varphi)=\operatorname{nd}(\theta,\varphi).

This conjecture predicts that the dimension of the limit partial Okounkov body is exactly the numerical dimension of the singularity type represented by φ\varphi.

References

Primary source

Mingchen Xia, “Partial Okounkov bodies and Duistermaat–Heckman measures of non-Archimedean metrics”, arXiv:2112.04290 (2024).

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.