کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9860845 1528971 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Statefinders, higher-order energy conditions, and sudden future singularities
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
Statefinders, higher-order energy conditions, and sudden future singularities
چکیده انگلیسی
We link observational parameters such as the deceleration parameter, the jerk, the kerk (snap) and higher-order derivatives of the scale factor, called statefinders, to the conditions which allow to develop sudden future singularities of pressure with finite energy density. In this context, and within the framework of Friedmann cosmology, we also propose higher-order energy conditions which relate time derivatives of the energy density and pressure which may be useful in general relativity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 625, Issues 3–4, 13 October 2005, Pages 184-188
نویسندگان
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