A self-contained approach to lower semicontinuity and lower closure evolves from an
extension of relaxed control theory, which is based on a central relative weak compactness …

Milgrom and Weber (Milgrom, PR, Weber, RJ 1985. Distributional strategies for games with
incomplete information. Math. Oper. Res. 10 619–632.) gave an existence result for a Nash …

The first four sections of these notes form a quick, incisive introduction to the subject of
Young measure theory. The term Young measures refers to transition probabilities that are …

An existence result for optimal control problems of Lagrange type with unbounded time
domain is derived very directly from a corresponding result for problems with bounded time …

By an effective extension of the conjugate function concept a general framework for duality-stability
relations in nonconvex optimization problems can be studied. The results obtained …

These notes were motivated by a series of lectures which I gave in June 1994 as an invited
professor at the Centre de Recherche de Mathématiques de la Décision (CEREMADE) of …

An approach initiated in [4] is shown to unify results about the existence of (i) Nash equilibria
in games with at most countably many players, (ii) Cournot-Nash equilibrium distributions …

For games with a measure space of players a tandem pair, consisting of a mixed and a pure
Cournot–Nash equilibrium existence result, is presented. Their generality causes them to be …

A number of fundamental results, centered around extensions of Prohorov's theorem, is
proven for the ws-topology for measures on a product space. These results contribute to the …

A new general relative sequential compactness criterion for scalarly integrable functions is
presented. The novel feature of this result is the fact that it deals with a strong form of …