22 citations · 51 across the 10 of their papers we have counts for
4 papers · 1 filter
The multiplicity of a singularity in a vexillary Schubert variety
David Anderson, Takeshi Ikeda, Minyoung Jeon +1
In a classical-type flag variety, we consider a Schubert variety associated to a vexillary (signed) permutation, and establish a combinatorial formula for the Hilbert-Samuel multip…
Infinite flags and Schubert polynomials
David Anderson
We study Schubert polynomials using geometry of infinite-dimensional flag varieties and degeneracy loci. Applications include Graham-positivity of coefficients appearing in equivar…
Identities for Schur-type determinants and pfaffians
David Anderson, William Fulton
We give a simple formula for some determinants, and an analogous formula for pfaffians, both of which are polynomial identities. The second involve some expressions that interpolat…
Schubert Polynomials in Types A and C
David Anderson, William Fulton
Enriched versions of type A Schubert polynomials are constructed with coefficients in a polynomial ring in variables . Specializing these variables to recover…