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It has been shown by Birkhoff [2], [3] that Hubert's projective metric [4] may be applied to a variety of problems involving linear mappings of a function space into itself. In this note we shall point out that essentially the same metric may be applied to some nonlinear mappings which frequently arise in dynamic programming [l] . Let X be some set, and let P denote the set of all nonnegative r...
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ژورنال
عنوان ژورنال: Bulletin of the American Mathematical Society
سال: 1965
ISSN: 0002-9904
DOI: 10.1090/s0002-9904-1965-11388-x