| Titre : |
علم الكون الديناميكي في الفضاء-الزمكان- غير ريماني والطاقة المظلمة |
| Type de document : |
texte imprimé |
| Auteurs : |
أحمد مالكي, Auteur ; جامعة منتوري, Éditeur scientifique ; نور الدين مباركي, Directeur de thèse |
| Année de publication : |
2011 |
| Importance : |
253 ورقة. |
| Format : |
30 سم. |
| Note générale : |
2نسخ موجودة في المكتبة المركزية |
| Langues : |
Arabe (ara) |
| Catégories : |
Arabe
الفيزياء
|
| Tags : |
Cosmologie Fluide de Chaplygin Géométrie de Finsler Cosmology Chaplygin gas Finsler geometry علم الكون مائع شابلجين هندسة فينسلر |
| Index. décimale : |
530 الفيزياء |
| Résumé : |
In this thesis, we have studied two different models of the accelerated expansion of the universe phenomenon. In the first model, we have found that the geometry is responsible for this accelerated expansion of the universe without introducing a dark energy. This model is the f (R) theory in the context of Finsler geometry. The second model consists of introducing a Chaplygin fluid. This kind of matter has somewhat strange properties such that a negative pressure which may be a signature of dark energy. This energy does not interact with ordinary matter, but acts on gravitation. In addition, we must not forget that this study is based on a non-Riemannian geometry which is the Finsler geometry considered as a generalization of the space-time geometry. The interpretation of these cosmological models suggests viable solutions and stability near the vicinity of some critical points in the dynamical study. |
| Diplôme : |
Magistère |
| En ligne : |
../theses/physique/AMAL3554.pdf |
| Format de la ressource électronique : |
pdf |
| Permalink : |
index.php?lvl=notice_display&id=9530 |
علم الكون الديناميكي في الفضاء-الزمكان- غير ريماني والطاقة المظلمة [texte imprimé] / أحمد مالكي, Auteur ; جامعة منتوري, Éditeur scientifique ; نور الدين مباركي, Directeur de thèse . - 2011 . - 253 ورقة. ; 30 سم. 2نسخ موجودة في المكتبة المركزية Langues : Arabe ( ara)
| Catégories : |
Arabe
الفيزياء
|
| Tags : |
Cosmologie Fluide de Chaplygin Géométrie de Finsler Cosmology Chaplygin gas Finsler geometry علم الكون مائع شابلجين هندسة فينسلر |
| Index. décimale : |
530 الفيزياء |
| Résumé : |
In this thesis, we have studied two different models of the accelerated expansion of the universe phenomenon. In the first model, we have found that the geometry is responsible for this accelerated expansion of the universe without introducing a dark energy. This model is the f (R) theory in the context of Finsler geometry. The second model consists of introducing a Chaplygin fluid. This kind of matter has somewhat strange properties such that a negative pressure which may be a signature of dark energy. This energy does not interact with ordinary matter, but acts on gravitation. In addition, we must not forget that this study is based on a non-Riemannian geometry which is the Finsler geometry considered as a generalization of the space-time geometry. The interpretation of these cosmological models suggests viable solutions and stability near the vicinity of some critical points in the dynamical study. |
| Diplôme : |
Magistère |
| En ligne : |
../theses/physique/AMAL3554.pdf |
| Format de la ressource électronique : |
pdf |
| Permalink : |
index.php?lvl=notice_display&id=9530 |
|
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