Roitman's theorem

In mathematics, Roitman's theorem, introduced by Rojtman (1980), states that the Abel–Jacobi map from the Chow group of degree 0 cycles to the Albanese variety is an isomorphism on torsion subgroups.

References

• Rojtman, A. A. (1980), "The torsion of the group of 0-cycles modulo rational equivalence", Annals of Mathematics. Second Series 111 (3): 553–569, doi:10.2307/1971109, ISSN 0003-486X, MR 577137