Also known as Lefschetz–Picard theory, Picard–Lefschetz theorem, Lefschetz–Picard theorem, Picard–Lefschetz formula, Lefschetz–Picard formula
the study of the topology of a complex manifold by looking at the critical points of a holomorphic function on the manifold
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).