Paper · Apr 20, 2026

Complex normalizing flows can almost be information Kähler-Ricci flows

Andrew Gracyk

As on arXiv

Abstract

We develop interconnections between the complex normalizing flow for data drawn from Borel probability measures on the twofold realification of the complex manifold and a nonlinear flow nearly Kähler-Ricci. The complex normalizing flow relates the initial and target realified densities under the complex change of variables, necessitating the log determinant of the ensemble of Wirtinger Jacobians. The Ricci curvature of a Kähler manifold is the second order mixed Wirtinger partial derivative of the log of the local density of the volume form. Therefore, we reconcile these two facts by drawing forth the connection that the log determinant used in the complex normalizing flow matches a Ricci curvature term under differentiation and conditions. The log density under the normalizing flow is kindred to a spatial information metric under an augmented Jacobian and a Bayesian perspective to the parameter, thus under the continuum limit the log likelihood matches a Fisher metric, or more closely a Kähler cross-entropy Hessian. This recovers a Kähler-Ricci flow variation up to a time derivative and expectation, or an average-valued Kähler-Einstein flow. Using this framework, we establish other relevant results, attempting to bridge the statistical and ordinary behaviors of the complex normalizing flow to the geometric features of our derived Kähler flow.

Submitted
Apr 20, 2026
Last revised
Jun 22, 2026 (v3)
Subjects
math.DG, cs.LG

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  1. estimates for Kähler-Ricci flow on Kähler-Einstein Fano manifolds: a new derivation

    Wangjian Jian and Yalong Shi

    Topics Kähler–Einstein & K-stability, Kähler–Ricci flow, Einstein metrics

  2. Finite-Time Singularities of the Kähler–Ricci Flow on a -Bundle over a Product of Kähler–Einstein Manifolds

    Yifan Xiao

    Topics Kähler–Einstein & K-stability, Kähler–Ricci flow, Einstein metrics

  3. Singularity Models of Finite-Time Kähler-Ricci Flows

    Frederick Tsz-Ho Fong and Hung Tran

    Topics Kähler–Einstein & K-stability, Kähler–Ricci flow, Einstein metrics

  4. Fano Fibrations and Twisted Kähler-Einstein Metrics II: The Kähler-Ricci Flow

    Alexander Bednarek

    Topics Kähler–Einstein & K-stability, Kähler–Ricci flow, Einstein metrics · Shared terms “volume form”

  5. Continuity of solutions to complex Monge-Ampère equations on compact Kähler spaces

    Ye-Won Luke Cho and Young-Jun Choi

    Topics Kähler–Einstein & K-stability, Kähler–Ricci flow, Einstein metrics

  6. Ricci Flow on CP1-bundles over a Product of Kähler-Einstein Manifolds

    Frederick Tsz-Ho Fong and Hung Tran

    Topics Kähler–Einstein & K-stability, Einstein metrics, Kähler geometry

  7. K-stability of Gorenstein Fano group compactifications with rank two

    Jae-Hyouk Lee, Kyeong-Dong Park and Sungmin Yoo

    Topics Kähler–Einstein & K-stability, Kähler–Ricci flow, Einstein metrics

  8. Scalar Curvature, Volumes and the Bergman Kernel

    Bo-Yong Chen, Yuanpu Xiong and Liyou Zhang

    Topics Kähler–Einstein & K-stability, Kähler–Ricci flow, Einstein metrics

Read around it

Background reading

The guides for the topics of this paper: what each idea is, why it matters, and the papers to read first.

In the guidebook

  1. 5A.6
    Where This Track LeadsBook 5A · Complex Analysis and Conformal Geometry

    The Kähler–Ricci flow, and when to come back to it.

  2. 5A.5
    Uniformization and the Two-Dimensional Ricci FlowBook 5A · Complex Analysis and Conformal Geometry

    Constant-curvature metrics on surfaces, and Ricci flow as a heat equation for the conformal factor.

  3. 10A.12
    Curve Shortening and Minimal DiscsBook 10A · Three-Manifolds and Geometrization

    How loops shrink under curvature, how the discs they bound lose area, and Perelman's extinction estimate.