Alexander duality and knot invariants
Statement
Alexander developed tools in algebraic topology including Alexander duality and the Alexander polynomial invariant for knots and links.
Formula
H̃^i(S^n \ K) ≅ H_{n-i-1}(K)
Source
Canonical lineament aligned with TANAAKK IAS Faculty Emeriti index (2026); consult specialist monographs for full proofs.
Domains
mathematics