Local conjugacy theorem,
rank theorems in advanced
calculus and a generalized principle for constructing Banach
manifolds |
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作者单位: | Department of Mathematics, Nanjing University, Nanjing 210093, China
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基金项目: | the National Natural Science Foundation of China,教育部博士基金 |
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摘 要: |
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收稿时间: | 10 March 1999 |
Local conjugacy theorem, rank theorems in advanced calculus and a generalized principle for constructing Banach manifolds |
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Authors: | MA Jipu |
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Institution: | Department of Mathematics, Nanjing University, Nanjing 210093, China |
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Abstract: | Applications of locally fine property for operators are further developed. LetE andF be Banach spaces andF:U(x
0)⊂E→F be C1 nonlinear map, whereU (x
0) is an open set containing pointx
0∈E. With the locally fine property for Frechet derivativesf′(x) and generalized rank theorem forf′(x), a local conjugacy theorem, i. e. a characteristic condition forf being conjugate tof′(x
0) near x0,is proved. This theorem gives a complete answer to the local conjugacy problem. Consequently, several rank theorems in advanced
calculus are established, including a theorem for C1 Fredholm map which has been so far unknown. Also with this property the concept of regular value is extended, which gives
rise to a generalized principle for constructing Banach submanifolds. |
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Keywords: | local conjugacy problem rank theorem Banach submanifolds |
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