Generic separating sets for 3D elasticity tensors - Archive ouverte HAL
Article Dans Une Revue Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences Année : 2019

Generic separating sets for 3D elasticity tensors

Boris Desmorat
Boris Kolev
Marc Olive

Résumé

We define what is a generic separating set of invariant functions (a.k.a. a weak functional basis) for tensors. We produce then two generic separating sets of polynomial invariants for 3D elasticity tensors, one made of 19 polynomials and one made of 21 polynomials (but easier to compute) and a generic separating set of 18 rational invariants. As a byproduct, a new integrity basis for the fourth-order harmonic tensor is provided.
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Dates et versions

hal-01966221 , version 1 (27-12-2018)
hal-01966221 , version 2 (26-06-2019)

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Rodrigue Desmorat, Nicolas Auffray, Boris Desmorat, Boris Kolev, Marc Olive. Generic separating sets for 3D elasticity tensors. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2019, ⟨10.1098/rspa.2019.0056⟩. ⟨hal-01966221v1⟩
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