Birkhoff-Kellogg theorems on invariant directions for multimaps
[摘要] We establish Birkhoff-Kellogg type theorems on invariant directionsfor a general class of maps. Our results, in particular, apply to Kakutani, acyclic, O'Neill, approximable, admissible, and?cκmaps.
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[效力级别] [学科分类] 数学(综合)
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