David Anderson

activity

20062012

most citedDegeneracy Loci, Pfaffians, and Vexillary Signed Permutations in Types B, C, and D

22 citations · 33 across the 3 of their papers we have counts for

collaborators

3 papers

math.AG2012★ 22 cited

Degeneracy Loci, Pfaffians, and Vexillary Signed Permutations in Types B, C, and D

David Anderson, William Fulton

We define a notion of vexillary signed permutation in types B, C, and D, corresponding to natural degeneracy loci for vector bundles with symmetries of those types. We show that th…

math.AG2007★ 11 cited

Positivity in the cohomology of flag bundles (after Graham)

Dave Anderson

We give a short, geometric proof of Graham's theorem on positivity in the equivariant cohomology of a flag variety, based on a transversality argument.

math.CO2006

A note on quantum products of Schubert classes in a Grassmannian

Dave Anderson

Given two Schubert classes $σ_{λ}$ and $σ_{μ}$ in the quantum cohomology of a Grassmannian, we construct a partition $ν$ , depending on $λ$ and $μ$ , such that $σ_{ν}$ appears with coeffic…