Tong

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Name Tong
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Feb
24
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Feb
22
comment Where can I find the two books of Weil on abelian varieties?
If you are in Beijing, I think you can find these two books in the university library of Tsinghua (老馆闭架库).
Feb
6
comment The Picard Group over artin ring
I think that in BLR's book, they say only that, when $X/S$ is a projective abelian scheme, $\mathrm{Pic}^{\tau}_{X/S}$ is representable. For the representability for the whole Picard functor, you need to use Falting-Chai theorem 1.9, which is due to Raynaud..Moreover, in general, $\mathbb{Pic}_{X/S}$ may be not smooth, only the identity componenet is smooth..