法律的瑕疵
发表于 2025-3-25 06:12:41
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昆虫
发表于 2025-3-25 09:52:14
Rainer M. Mohr,Andreas Schillingse modern point of view such a problem evidently is a special case of a selection problem: find a selection of multivalued mapping . ↦ {y ∈ . | .(., .) = 0}. This problem was originally started without using any “selection” terms and goes back to Hadamard and Lusin.
庇护
发表于 2025-3-25 13:34:57
Christoph Kalwa,Stefan Steinbergmong them are Banach-valued version of the Dugundji extension theorem, the Bartle-Graves theorem, Kadec’s solution of the homeomorphism problem for Banach spaces, the Mazurkiewicz theorem, paracompactness of CW-complexes, on continuous choice in the continuity type definitions, etc.
MILL
发表于 2025-3-25 17:33:25
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发芽
发表于 2025-3-25 22:59:49
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护身符
发表于 2025-3-26 04:13:42
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跳动
发表于 2025-3-26 07:30:35
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Negotiate
发表于 2025-3-26 10:00:55
Dirk Berg-Schlosser,Ferdinand Müller-Rommel(2.4). The value of a continuous singlevalued selection of a given convex-valued mapping will be constructed as the value of an integral (or the barycenter) of a continuous selection of some closed-valued mapping, with respect to a probability measure, defined on some 0-dimensional compactum. This a
泰然自若
发表于 2025-3-26 15:05:28
Dirk Berg-Schlosser,Ferdinand Müller-Rommeled mapping and for a range with some special restrictions; namely, Banach spaces or, in other words, spaces with a “good” combination of metric and convex structures. The second one, Zero-dimensional theorem (2.4), works for an . completely metrizable range and for a zero-dimensional paracompact dom
PANIC
发表于 2025-3-26 18:29:32
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