Skip to main content
latex
Source Link
S. Carnahan
  • 45.7k
  • 6
  • 114
  • 220

Let F=(F_n)n be an l-adic sheaf on X{et}$F=(F\_n)\_n$ be an $\ell$-adic sheaf on $X\_{et}$, for a variety X$X$ over an algebraically closed field k$k$ of characteristic not equal to l$\ell$. Does the presheaf sending U$U$ to H^i(U,F):=\lim_nH^i(U,F_n)$H^i(U,F):=\lim\_n H^i(U,F\_n)$ sheafify to zero?

Let F=(F_n)n be an l-adic sheaf on X{et}, for a variety X over an algebraically closed field k of characteristic not equal to l. Does the presheaf sending U to H^i(U,F):=\lim_nH^i(U,F_n) sheafify to zero?

Let $F=(F\_n)\_n$ be an $\ell$-adic sheaf on $X\_{et}$, for a variety $X$ over an algebraically closed field $k$ of characteristic not equal to $\ell$. Does the presheaf sending $U$ to $H^i(U,F):=\lim\_n H^i(U,F\_n)$ sheafify to zero?

Source Link
shenghao
  • 4.3k
  • 30
  • 52

sheafifying a projective limit of presheaves

Let F=(F_n)n be an l-adic sheaf on X{et}, for a variety X over an algebraically closed field k of characteristic not equal to l. Does the presheaf sending U to H^i(U,F):=\lim_nH^i(U,F_n) sheafify to zero?