2 papers
math.AG2025
Tangent Weights and Invariant Curves in Type A Bow Varieties
Alexander O. Foster, Yiyan Shou
This paper provides a complete classification of torus-invariant curves in Cherkis bow varieties of type A. We develop combinatorial codes for compact and noncompact invariant curv…
math.CO2024
Geometric Bruhat order on (0,1)-matrices
Tommaso Maria Botta, Alexander O. Foster, Richard Rimanyi
The combinatorially and the geometrically defined partial orders on the set of permutations coincide. We extend this result to -matrices with fixed row and column sums. Name…