2 papers
math.CO2026
Filtrations and recursions for Schubert modules
David Anderson
Revisiting KraÅkiewicz and Pragacz's construction of Schubert modules, we provide a new proof that their characters are equal to Schubert polynomials. The main innovation is a rep…
math.AT2025
Äech cohomology of infinite projective spaces, flag manifolds, and related spaces
David Anderson, Matthias Franz
We compute the Äech cohomology ring of a countable product of infinite projective spaces, and that of an infinite flag manifold. The method of our first result in fact computes th…