In algebraic geometry, the smooth topology is a certain Grothendieck topology which is finer than étale topology. Its main use is to define the cohomology of an algebraic stack with coefficients in, say, the étale sheaf Q l {\displaystyle \mathbb {Q} _{l}} .
In algebraic geometry, the smooth topology is a certain Grothendieck topology which is finer than étale topology. Its main use is to define the cohomology of an algebraic stack with coefficients in, say, the étale sheaf Q l {\displaystyle \mathbb {Q} _{l}} .
Source: Wikipedia "Smooth topology" · CC BY-SA 4.0
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