English

Geometry of Deligne cohomology

alg-geom 2009-10-28 v1 Algebraic Geometry

Abstract

It is well known that degree two Deligne cohomology groups can be identified with groups of isomorphism classes of holomorphic line bundles with connections. There is also a geometric description of degree three Deligne cohomology, due to J-L. Brylinski and P. Deligne, in terms of gerbes with connective structures and curvings. This paper gives a geometric interpretation of Deligne cohomology of all degrees, in terms of equivalence classes of higher line bundles with kk-connections. It is also shown that the classical Abel-Jacobi isomorphism Pic0(X)J(X)Pic^0(X) \cong J(X) generalizes to the isomorphism between groups of equivalence classes of topologically trivial 1-holomorphic higher line bundles with kk-connections and Griffiths intermediate Jacobians.

Keywords

Cite

@article{arxiv.alg-geom/9601025,
  title  = {Geometry of Deligne cohomology},
  author = {Pawel Gajer},
  journal= {arXiv preprint arXiv:alg-geom/9601025},
  year   = {2009}
}

Comments

51 pages, uses XY-pic, author-supplied PostScript and DVI files available at http://www.math.tamu.edu/~pawel.gajer/gdc.html . LaTeX2e