Functional analysis Infinite-dimensional calculus, measures and holomorphy Concept
Fréchet derivative
Builds on Total derivative
Summary
The Fréchet derivative of a map between normed vector spaces at a point is a bounded linear map. It best approximates for small . It extends the derivative of one-variable calculus to maps between normed spaces, which can have infinite dimension. For maps between Euclidean spaces it is the total derivative.
Reading path
To understand this page from the ground up, read these 3 pages in order. The foundations come first.
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- no evidence level
- Euclidean space object
- Total derivative concept
- Fréchet derivative concept
Where this leads
24 pages build on this one.
- Strict differentiability
- Iterated derivative
- Newton–Kantorovich theorem
- Holomorphic function of several variables
- Lyusternik's theorem on tangent spaces
- Isoperimetric problem of the calculus of variations
- Banach bundle
- Holomorphy on Banach spaces
- Catenary problem
- Nash–Moser theorem
- Implicit function theorem in Banach spaces
- Euler's elastica
- Critical point theory
- Mountain pass theorem
- Dido's problem
- Fredholm map
- Palais–Smale compactness condition
- Inverse function theorem in Banach spaces
- Influence function
- Hilbert manifold
- Gateaux derivative
- Lagrange multipliers on Banach spaces
- Banach–Lie group
- Banach manifold
Further reading
About this page
| Tag | 06EH97V2A7 |
|---|---|
| URI | m2://06EH97V2A7 |
| Aliases | frechet-derivative, strong-derivative |
| Kind | concept |
| Writing | W1 stated |
| MSC | 46G05 |
| Uses | Total derivative |
| Same as |
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What this page needs for W2
- edge instance_of in: at least two examples (0 of 2)
- edge not_instance_of in: at least one non-example (0 of 1)
- edge specializes both: the more general notions and the special cases (0 of 1)
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What links here
Definitions
Used by
- Strict differentiability
- Iterated derivative
- Newton–Kantorovich theorem
- Holomorphic function of several variables
- Lyusternik's theorem on tangent spaces
- Holomorphy on Banach spaces
- Nash–Moser theorem
- Implicit function theorem in Banach spaces
- Critical point theory
- Mountain pass theorem
- Fredholm map
- Palais–Smale compactness condition
- Inverse function theorem in Banach spaces
- Hilbert manifold
- Gateaux derivative
- Lagrange multipliers on Banach spaces
- Banach manifold