Calmness and Exact Penalization
James V. Burke · SIAM Journal on Control and Optimization · 1991
The notion of calmness, which was introduced by Clarke and Rockafellar for constrained optimization, is considered. An equivalence to the technique of exact penalization due to Eremin and Zangwill is established. It is then shown that calmness is satisfied on a dense subset of the domain of the optimal value function.