Origin of Slater's condition I've been looking all over the internet to answer this question: _Slater's condition_ is a commonly used to certify that strong duality holds in a convex optimization problem. Although used in many papers and textbooks, I have been unable to find a reference to the paper in which this condition was first used. What are the origins of this condition? Who invented Slater's condition? Presumably this was a Mr. or Ms. Slater? Does anyone have a reference for me?

M. Slater, "Lagrange Multipliers Revisited," Cowles Commission Discussion Paper No. 403, November, 1950