Brinkhuis, Jan - In: European Journal of Operational Research 192 (2009) 3, pp. 1001-1007
In this note we give a new, simple proof of the standard first and second order necessary conditions, under the Mangasarian-Fromovitz constraint qualification (MFCQ), for non-linear programming problems. We work under a mild constraint qualification, which is implied by MFCQ. This makes it...