arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0709.3447math.AG
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可逆层的Hodge上同调

Hodge cohomology of invertible sheaves

Hélène Esnault, Arthur Ogus

摘要:

v2:我们根据裁判的意愿做了一些改进。v1:关于域$k$上的$X$投射光滑,Pink和Roessler猜想:如果$k$具有特征$p>0$,在$X$提升到$W_2(k)$和$dim X\le p$的假设下,如果$a$与$n$互素,可逆$n$ -扭层$L$的Hodge上同调维数与其$a$的次幂$L^a$的Hodge上同调维数相同.如果$k$的特征为0,并且如果$n$在特征$p>0$中与$p$互质,则它们显示这一点。如果$n=p$另外假设$X$是普通的(在布洛赫-加藤的意义上),我们证明了特征$p>0$的猜想。

英文摘要:

v2: We improved a little bit according to the referee's wishes. v1: On $X$ projective smooth over a field $k$, Pink and Roessler conjecture that the dimension of the Hodge cohomology of an invertible $n$-torsion sheaf $L$ is the same as the one of its $a$-th power $L^a$ if $a$ is prime to $n$, under the assumptions that $X$ lifts to $W_2(k)$ and $dim X\le p$, if $k$ has characteristic $p>0$. They show this if $k$ has characteristic 0 and if $n$ is prime to $p$ in characteristic $p>0$. We show the conjecture in characteristic $p>0$ if $n=p$ assuming in addition that $X$ is ordinary (in the sense of Bloch-Kato).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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