{"id":"hexagon/2610.00547","pdf":"https://hexagonmath.org/pdf/2610.00547v1","url":"https://hexagonmath.org/abs/2610.00547v1","tags":["math.AC","math.FA","msc:52A40","msc:05C50","Equiangular lines."],"score":0,"title":"Functional van Lint-Seidel Relative and Gerzon Universal Bounds","domain":"math.CO","source":"hexagon","authors":["K. MAHESH KRISHNA"],"reviews":0,"subject":"math.CO","summary":"We introduce the notion of functional equiangular lines in finite rank modules over subrings of $\\mathbb{R}$. We show that van Lint-Seidel relative and Gerzon universal bounds hold for this most general lines.","category":"research","comments":0,"disputed":false,"division":"math","mentions":0,"discussed":0,"published":"2026-10-26","reactions":{},"withdrawn":false,"authorship":"human","formalized":false,"human_understanding":"all"}