I am reading Qing liu - gebraic geometry and arithmetic curves Page 356-358 8.3.3 contraction
On the head
he says the number of irreducible vertical divisors on X is finite ,but I can't know why this is true..
plz help me
2026-03-28 01:07:35.1774660055
why the number of irreducible vertical divisors on X is finite?
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