Chern-Ricci flow convergence conjecture for manifolds of general type

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Let MnM^n be a compact complex manifold with nef canonical bundle KMK_M and Kodaira dimension Kod(M)=n\mathrm{Kod}(M)=n. Let ω(t)\omega(t) solve the Chern-Ricci flow starting at an arbitrary Hermitian metric ω0\omega_0, and let SS be the canonical-model singular set and ωKE\omega_{\rm KE} the limiting Kähler-Einstein metric on M∖SM\setminus S. Chern-Ricci flow convergence conjecture. There is a constant CC such that, for all sufficiently large tt,

diam(M,ω(t)t)⩽C,\mathrm{diam}\left(M,\frac{\omega(t)}{t}\right)\leqslant C,

and

(M,ω(t)t)⟶(Z,d)\left(M,\frac{\omega(t)}{t}\right)\longrightarrow (Z,d)

as t→∞t\to\infty in the Gromov-Hausdorff sense, where (Z,d)(Z,d) is the metric completion of (M∖S,ωKE)(M\setminus S,\omega_{\rm KE}). This predicts the metric-space asymptotics of the flow in the general-type case; the stated convergence and diameter bound are presented as an expected picture, beyond the convergence results known in the ample and previously treated cases.

References

Primary source

Valentino Tosatti and Ben Weinkove, “The Chern-Ricci flow”, arXiv:2107.12928 (2021).

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