Torsion sheaf

on a site for which, for every object U, the space of sections

is a torsion abelian group.

Similarly, for a prime number p, we say a sheaf

is p-torsion if every section over any object is killed by a power of p. A torsion sheaf on an étale site is the union of its constructible subsheaves.

[1] This topology-related article is a stub.