Gellekom, J. R. G. van; Potters, J. A. M.; Reijnierse, J. H. - In: International Journal of Game Theory 28 (1999) 2, pp. 211-227
An important open problem in the theory of TU-games is to determine whether a game has a stable core (Von Neumann-Morgenstern solution (1944)). This seems to be a rather difficult combinatorial problem. There are many sufficient conditions for core-stability. Convexity is probably the best known...
