Hp. Battenberg et Bj. Falkowski, On saddlepoints of two-person zero-sum games with applications to data verification tests, INT J GAME, 27(4), 1998, pp. 561-576
A set of sufficient conditions for the existence of saddlepoint strategies
of two-person zero-sum games is given which may be described as follows: Th
e set of pure strategies for one of the two players is a compact metric spa
ce. His opponent has a best answer to each randomized strategy. The payoff
function satisfies a continuity condition concerning the weak convergence o
f probability measures. These conditions are neither covered by those of we
ll known existence theorems for saddlepoints nor do they generalize them. T
hey are applied to treat important practical problems that have not been so
lved before.