Fréchet空间间非光滑映射的一个隐函数定理
An implicit function theorem for non-smooth maps between Fréchet spaces
摘要:
证明了Fréchet空间之间映射满足Tame估计的Nash-Moser型反函数定理.与前面的证明相反,我们没有使用牛顿法,也就是说,我们没有使用平方收敛来克服缺少导数的问题。事实上,当要反转的映射不是C^2时,我们的定理成立
英文摘要:
We prove an inverse function theorem of Nash-Moser type for maps between Fréchet spaces satisfying tame estimates. In contrast to earlier proofs, we do not use the Newton method, that is, we do not use quadratic convergence to overcome the lack of derivatives. In fact, our theorem holds when the map to be inverted is not C^2
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