2 papers
math.AG2026
Two-flag degenerations and real circles tangent to three conics
Haoyang Liu, Tianle Liu, Guorui Xu +1
Three general plane conics admit complex tangent circles, and it had been conjectured that at most of them could be real. We construct an explicit strongly general trip…
math.AG2026
A Fan Algorithm for Chow-Witt Rings of Smooth Projective Toric Varieties
Haoyang Liu, Tianle Liu, Guorui Xu
Let be a real closed field and let be a smooth projective split toric variety. For an explicitly chosen basis rigidification of its Picard grading, we prove…