Fibration stability implies adiabatic K-semistability

Let f:(X,H)(B,L)f:(X,H)\to(B,L) be a smooth polarized fibration. The fibration is fibration stable, and (B,L)(B,L) has a twisted constant scalar curvature Kähler metric with respect to the Weil–Petersson metric. The polarization on the total space is δH+fL\delta H+f^*L. Fibration-stability conjecture. If ff is fibration stable and (B,L)(B,L) has such a twisted cscK metric, then (X,H)(X,H) is adiabatically K-semistable; equivalently, (X,δH+fL)(X,\delta H+f^*L) is K-semistable for sufficiently small δ>0\delta>0. This predicts that stability of the fibration together with the appropriate metric condition on the base yields adiabatic K-semistability of the total space; the source provides no resolution status.

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Primary source

Masafumi Hattori, “On fibration stability after Dervan-Sektnan and singularities”, arXiv:2202.09992 (2022).

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