Existence et régularité des formes optimales pour des problèmes d'optimisation spectrale

Autor: Trey, Baptiste

Publikováno v: Algèbres d'opérateurs [math.OA]. Université Grenoble Alpes [2020-..], 2020. Français. ⟨NNT : 2020GRALM019⟩

In this thesis, we study the existence and the regularity of optimal shapes for some spectral optimization problems involving an elliptic operator with Dirichlet boundary condition.First of all, we consider the problem of minimizing the principal eig

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______2592::22feff109023c9d05df23164f54a45fc
https://tel.archives-ouvertes.fr/tel-03141381/document

La télédétection passive de la chlorophylle dans l'Estuaire maritime du Saint-Laurent optimisation spectrale des algorithmes et application au SeaWiFs

Autor: Jacques, André

This work is one more step toward passive remote sensing as a way to estimate the water chlorophyll content in the St-Lawrence Estuary. In July 1993, during the LIDAR-93 oceanographic cruise, optical and biochemical data were collected to identify th

Externí odkaz: http://savoirs.usherbrooke.ca/handle/11143/2723

Existence and regularity of optimal shapes for some spectral optimization problems

Autor: Trey, Baptiste

Publikováno v: Algèbres d'opérateurs [math.OA]. Université Grenoble Alpes [2020-..], 2020. Français. ⟨NNT : 2020GRALM019⟩

In this thesis, we study the existence and the regularity of optimal shapes for some spectral optimization problems involving an elliptic operator with Dirichlet boundary condition.First of all, we consider the problem of minimizing the principal eig

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::22feff109023c9d05df23164f54a45fc
https://theses.hal.science/tel-03141381

Optimisation de la configuration d'un instrument superspectral aéroporté pour la classification : application au milieu urbain

Autor: Le Bris, Arnaud

Ce travail s'inscrit dans la perspective de l'enrichissement des bases de données d'occupation du sol. La description de l'occupation du sol permet de produire des indicateurs environnementaux pour la gestion des écosystèmes et des territoires, en

Externí odkaz: http://www.theses.fr/2015PESC1182/document

On the Spurious Mode Generation Induced by Spectral-Like Optimized Interpolation Schemes Used in Computational Acoustics

Autor: Stephane Redonnet, Guilherme Cunha

Publikováno v: Communications in Computational Physics
Communications in Computational Physics, Global Science Press, 2016, 20 (2), p. 325-352. ⟨10.4208/cicp.060515.161115b⟩

International audience; The present work constitutes a fraction of a more extensive study that is devoted to numerical methods in acoustics. More precisely, we address here the interpolation process, which is more and more frequently used in Computat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::389b6a0916985803c91fddec0da81554
https://hal.archives-ouvertes.fr/hal-01570616