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تسجيل مستخدم جديدالتشويشات الخطية للأزمنة المطابقة: المشكلة الموضعية والأساليب الخلفية
Linear perturbations of matched spacetimes: the gauge problem and background symmetries
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نقدرا مراجعة حرصية حول دراسة التشويشات الخطية للأجسام الفضائية المطابقة بما في ذلك المشاكل المؤشرية. نحلل الحرية المدخلة في التشويش المطابق بواسطة وجود الأنظمة الخلفية ونعيد زيارة الحالة الخاصة للتمايز الكروي في الأبعاد العددية. يشمل هذا التحليل الإعدادات مع الطبقات الحدودية مثل نماذج الأجزاء العالية والكوسمولوجيات القشرية.
We present a critical review about the study of linear perturbations of matched spacetimes including gauge problems. We analyse the freedom introduced in the perturbed matching by the presence of background symmetries and revisit the particular case of spherically symmetry in n-dimensions. This analysis includes settings with boundary layers such as brane world models and shell cosmologies.
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