Differentials and Semidifferentials for Metric Spaces of Shapes and Geometries - Archive ouverte HAL Access content directly
Conference Papers Year : 2016

## Differentials and Semidifferentials for Metric Spaces of Shapes and Geometries

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Michel C. Delfour
• Function : Author
• PersonId : 986385

#### Abstract

The Hadamard semidifferential retains the advantages of the differential calculus such as the chain rule and semiconvex functions are Hadamard semidifferentiable. The semidifferential calculus extends to subsets of ${\mathbb {R}}^n$ without Euclidean smooth structure. This set-up is an ideal tool to study the semidifferentiability of objective functions with respect to families of sets which are non-linear non-convex complete metric spaces. Shape derivatives are differentials for spaces endowed with Courant metrics. Topological derivatives are shown to be semidifferentials on the group of Lebesgue measurable characteristic functions.

#### Domains

Computer Science [cs]
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### Dates and versions

hal-01626899 , version 1 (31-10-2017)

### Licence

Attribution - CC BY 4.0

### Identifiers

• HAL Id : hal-01626899 , version 1
• DOI :

### Cite

Michel C. Delfour. Differentials and Semidifferentials for Metric Spaces of Shapes and Geometries. 27th IFIP Conference on System Modeling and Optimization (CSMO), Jun 2015, Sophia Antipolis, France. pp.230-239, ⟨10.1007/978-3-319-55795-3_21⟩. ⟨hal-01626899⟩

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