dorsal/arxiv
View SchemaDifferentiation of functionals with variables coupled by constraints: Analysis through a fluid-dynamical model
| Authors | Tamas Gal |
|---|---|
| Categories | |
| ArXiv ID | physics/0701145 |
| URL | https://arxiv.org/abs/physics/0701145 |
| DOI | 10.1063/1.2737265 |
| Journal | J. Math. Phys. 48, 053520 (2007) |
Abstract
Analysing an application in liquid film dynamics, a guide for obtaining the corresponding constrained functional derivatives for constraints coupling the functional variables is given. The use of constrained derivatives makes the proper account for constraints possible in time-dependent, nonequilibrium physical theories, with physical equations not emerging as Euler-Lagrange equations, which is especially relevant with respect to the dynamics of complex liquids.
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"abstract": "Analysing an application in liquid film dynamics, a guide for obtaining the\ncorresponding constrained functional derivatives for constraints coupling the\nfunctional variables is given. The use of constrained derivatives makes the\nproper account for constraints possible in time-dependent, nonequilibrium\nphysical theories, with physical equations not emerging as Euler-Lagrange\nequations, which is especially relevant with respect to the dynamics of complex\nliquids.",
"arxiv_id": "physics/0701145",
"authors": [
"Tamas Gal"
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"categories": [
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"doi": "10.1063/1.2737265",
"journal_ref": "J. Math. Phys. 48, 053520 (2007)",
"title": "Differentiation of functionals with variables coupled by constraints: Analysis through a fluid-dynamical model",
"url": "https://arxiv.org/abs/physics/0701145"
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