The Néron–Severi group of a proper seminormal complex variety

Abstract

We prove a Lefschetz (1, 1)-Theorem for proper seminormal varieties over the complex numbers.

The Picard Group of Simply Connected Regular Varieties and Stratified Line Bundles

“…Statement 2 from above can be generalized to the simplicial situation. In the case that char(k) = 0, this is sketched in [BVRS09,Sec. 3].…”