On wall-crossing coordinates in Cerf theory

arXiv (Cornell University) 2026 Preprint Open access

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Authors: Roger Casals
Cited by: 0

Abstract

We relate Bruhat numbers in real Morse theory to cluster variables in braid varieties. This provides instances of wall-crossing coordinates in the study of Cerf diagrams.

Fields of Study & Subjects

Geometric and Algebraic Topology Advanced Combinatorial Mathematics Algebraic Geometry and Number Theory

Publication details

Journal / source
arXiv (Cornell University)
Publication date
12 January 2026
Document type
Preprint