Question

... aka locally linear compact vector spaces. The one reference I know is http://www.math.harvard.edu/~gaitsgde/grad_2009/SeminarNotes/Nov3-10(CentExt).pdf. Does anyone know another good reference?

Answer 1

1. Beilinson, Drinfeld. Chiral Algebras section 2.7 (I think)
2. Beilinson, Feigin, Mazur. Notes on Conformal Field Theory (Incomplete) available on Mazur's web page.

Also: Tate, Residues of differentials on curves