collaborators

7 papers

math.DG2026

Type I estimates for the Kähler-Ricci flow II

Wangjian Jian, Jian Song

In this paper, we establish geometric consequences of our Type I scalar curvature estimate for finite-time solutions of the Kähler-Ricci flow on compact Kähler manifolds. We prove…

math.DG2026

Type I estimates for the Kahler-Ricci flow I

Wangjian Jian, Jian Song

We establish the Type I estimate for the scalar curvature of the Kahler-Ricci flow on compact Kahler manifolds, for arbitrary smooth initial metrics, whenever the flow develops fin…

math.DG2026

Finite-Time Singularities of the Kähler--Ricci Flow on Fano Bundles II

Wangjian Jian, Jian Song

The analytic minimal model program proposed in \cite{SongTianSingularities, JST} seeks to describe the birational transitions and fibre collapsing of the Kähler--Ricci flow through…

math.DG2026

Finite-Time Singularities of the Kähler--Ricci Flow on Fano Bundles

Wangjian Jian, Jian Song

We study collapsing finite-time singularities of the unnormalized Kähler--Ricci flow on Fano bundles arising in the analytic minimal model program. For a Fano bundle $X^n\rightarro…

math.DG2023

Finite time singularities of the Kähler-Ricci flow

Wangjian Jian, Jian Song, Gang Tian

We establish the scalar curvature and distance bounds, extending Perelman's work on the Fano Kähler-Ricci flow to general finite time solutions of the Kähler-Ricci flow. These boun…

math.DG2023

Geometric regularity of blow-up limits of the Kähler-Ricci flow

Max Hallgren, Wangjian Jian, Jian Song +1

We establish geometric regularity for Type I blow-up limits of the Kähler-Ricci flow based at any sequence of Ricci vertices. As a consequence, the limiting flow is continuous in t…

math.DG2023

A new proof of Perelman's scalar curvature and diameter estimates for the Kähler-Ricci flow on Fano manifolds

Wangjian Jian, Jian Song, Gang Tian

In this note, we give a new proof for Perelman's scalar curvature and diameter estimates for the Kähler-Ricci flow on Fano manifolds. The proof relies on a new Harnack estimate for…