A useful lemma for Lagrange multiplier rules in infinite dimension.
Abstract
We give some reasonable and usable conditions on a sequence of norm one in a dual banach space under which the sequence does not converges to the origin in the $w^*$-topology. These requirements help to ensure that the Lagrange multipliers are nontrivial, when we are interested for example on the infinite dimensional infinite-horizon Pontryagin Principles for discrete-time problems.
Domains
Functional Analysis [math.FA]
Origin : Files produced by the author(s)
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