English

Standard conjectures for the arithmetic Grassmannian G(2,N) and Racah polynomials

Algebraic Geometry 2007-05-23 v1

Abstract

We prove the arithmetic Hodge index and hard Lefschetz conjectures for the Grassmannian G=G(2,N)G=G(2,N) parametrizing lines in projective space, for the natural arithmetic Lefschetz operator defined via the Pl\"ucker embedding of GG in projective space. The analysis of the Hodge index inequalities involves estimates on certain Racah polynomials.

Keywords

Cite

@article{arxiv.math/0003193,
  title  = {Standard conjectures for the arithmetic Grassmannian G(2,N) and Racah polynomials},
  author = {Andrew Kresch and Harry Tamvakis},
  journal= {arXiv preprint arXiv:math/0003193},
  year   = {2007}
}

Comments

13 pages, LaTeX2e

R2 v1 2026-07-22T16:31:56.403Z