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Article . 1972
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Proceedings of the American Mathematical Society
Article . 1972 . Peer-reviewed
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Proceedings of the American Mathematical Society
Article . 1972 . Peer-reviewed
Data sources: Crossref
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An Approximation Theorem for Infinite Games

An approximation theorem for infinite games
Authors: Orkin, Michael;

An Approximation Theorem for Infinite Games

Abstract

We consider infinite, two person zero sum games played as follows: On the nth move, players A, B select privately from fixed finite sets, A,, Bn, the result of their selections being made known before the next selection is made. A point in the associated sequence space Q = ]7n= (An x B,n) is thus produced upon which B pays A an amount determined by a payoff function defined on U. We show that if the payoff functions of games {GnJ are upper semicontinuous and decrease pointwise to a function which is the payoff for a game, G, then Val(GJ)IVal(G). This shows that a certain class of games can be approximated by finite games. We then give a counterexample to possibly more general approximation theorems by displaying a sequence of games {GJ} with upper semicontinuous payoff functions which increase to the payoff of a game G, and where Val(Gn)=0 for all n but Val(G) =

Keywords

2-person games

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
4
Average
Average
Average
bronze