magnanimity 发表于 2025-3-25 04:58:13

The Malgrange Preparation Theorem,ablish the existence of normal forms for singularities of certain stable mappings. In order to make the theorem palatable, we first state and prove the corresponding but less complicated result for analytic functions of several . variables.

疾驰 发表于 2025-3-25 10:10:58

Classification of Singularities. Part I: The Thom-Boardman Invariants,.). drops rank by .; i.e., if rank (.). = min (dim ., dim .) - .. Denote by . (.) the singularities of . of type .. Recall that in the proof of the Whitney Immersion Theorem we introduced the submanifolds . of . . (.) consisting of jets of corank .. (See II, Theorem 5.4.) Clearly .(.) = (.).(.). To

过剩 发表于 2025-3-25 12:40:05

Classification of Singularities. Part II: The Local Ring of a Singularity,not reassemble the constituent pieces and see what the map itself looks like. Consider for example the maps. and ... and . have isolated . singularities at the origin and are regular everywhere else. However, their map germs at the origin are not equivalent, even under homeomorphisms of . and ., sin

AVOID 发表于 2025-3-25 17:36:30

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entitle 发表于 2025-3-25 23:46:42

Classification of Singularities. Part II: The Local Ring of a Singularity,ce . has an extremum at 0 and . does not. From the Thom-Boardman data alone there is no way of computing the Hessian of . at 0; and, of course, it is the signature of the Hessian which distinguishes . from .. (See II, Theorem 6.9.)

放肆的你 发表于 2025-3-26 00:12:00

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采纳 发表于 2025-3-26 08:16:01

Martin Golubitsky,Victor Guilleminstructing optimal preplanned controls has been extensively worked out in literature (see, e. g. , the Pontrjagin maximum principle giving necessary conditions of preplanned control optimality). However, the concept of op­ timality itself has a restrictive character: it is limited by what one means u

aesthetician 发表于 2025-3-26 10:29:31

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dictator 发表于 2025-3-26 16:26:46

Martin Golubitsky,Victor Guilleminjury or death. These dangerous goods are used in processes in a variety of manufacturing and power plants, and also are generated as a by-product of industrial activity. They include explosives, gases, flammable liquids and solids, oxidizing substances, poisonous and infectious substances, radioacti

Limerick 发表于 2025-3-26 20:41:35

Martin Golubitsky,Victor Guilleminjury or death. These dangerous goods are used in processes in a variety of manufacturing and power plants, and also are generated as a by-product of industrial activity. They include explosives, gases, flammable liquids and solids, oxidizing substances, poisonous and infectious substances, radioacti
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查看完整版本: Titlebook: Stable Mappings and Their Singularities; Martin Golubitsky,Victor Guillemin Textbook 1973 Springer-Verlag New York Inc. 1973 Immersion.Map