**Lecture 13: February 25 - CMU Statistics**
https://www.stat.cmu.edu/~ryantibs/convexopt-S15/scribes/13-dual-corres-scribed.pdf

For any function f(x), the conjugate of conjugate function is no greater than the original function: f (x) f(x) If f(x) is closed and convex, then f (x) = f(x) If f(x) is closed and convex, then [email protected] (y) , [email protected](x), f(x) + f (y) = xTy If f(u;v) = f 1(u) + f 2(v), with u2Rnand v2Rm, then f(w;z) = f 1 (w) + f 2 (z) 13.2.2 Conjugate of some functions

**DA:** 58 **PA:** 93 **MOZ Rank:** 46 **Up or Down:** Up