Blaschke 1917 + Santalo 1949: for symmetric convex K, vol(K) vol(K^*) <= vol(B)^2 with equality iff K is ellipsoid; Bourgain-Milman lower bound 1985.
Blaschke 1917 + Santalo 1949: for symmetric convex K, vol(K) vol(K^*) <= vol(B)^2 with equality iff K is ellipsoid; Bourgain-Milman lower bound 1985.