Zoom, Online seminar
(線上演講 Zoom)
Shokurov's Conjecture on Conic Bundles with Canonical Singularities
Jingjun Han (Johns Hopkins University)
Abstract:
A conic bundle is a contraction
between normal varieties of relative dimension
such that the anit-canonical divisor is relatively ample. In this talk, I will prove a conjecture of Shokurov which predicts that, if
is a conic bundle such that
has canonical singularities, then base variety
is always
-lc, and the multiplicities of the fibers over codimension
points are bounded from above by
. Both values
and
are sharp. This is a joint work with Chen Jiang and Yujie Luo.
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Meeting ID: 827 7229 2046
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