Almost Symmetric Spaces and Gravitational Radiation
نویسندگان
چکیده
منابع مشابه
Gravitational Anomalies, Hawking Radiation, and Spherically Symmetric Black Holes
Motivated by the recent work of Robinson and Wilczek, we show that the gravitational anomaly in the Vaidya spacetime of arbitrary mass function is cancelled by the total flux of a 1+1 dimensional blackbody at the Hawking temperature of the spacetime. This cancellation restores general covariance at the quantum level. Furthermore, we generalize their results to the most general static, and spher...
متن کاملGeneralized Symmetric Berwald Spaces
In this paper we study generalized symmetric Berwald spaces. We show that if a Berwald space $(M,F)$ admits a parallel $s-$structure then it is locally symmetric. For a complete Berwald space which admits a parallel s-structure we show that if the flag curvature of $(M,F)$ is everywhere nonzero, then $F$ is Riemannian.
متن کاملOn the Spaces of $lambda _{r}$-almost Convergent and $lambda _{r}$-almost Bounded Sequences
The aim of the present work is to introduce the concept of $lambda _{r}$-almost convergence of sequences. We define the spaces $fleft( lambda _{r}right) $ and $f_{0}left( lambda _{r}right) $ of $ lambda _{r}$-almost convergent and $lambda _{r}$-almost null sequences. We investigate some inclusion relations concerning those spaces with examples and we determine the $beta $- and $gamma $-duals of...
متن کاملALMOST S^{*}-COMPACTNESS IN L-TOPOLOGICAL SPACES
In this paper, the notion of almost S^{*}-compactness in L-topologicalspaces is introduced following Shi’s definition of S^{*}-compactness. The propertiesof this notion are studied and the relationship between it and otherdefinitions of almost compactness are discussed. Several characterizations ofalmost S^{*}-compactness are also presented.
متن کاملPlane Symmetric Gravitational Collapse
In this paper, we derive the general formulation by considering two arbitrary plane symmetric spacetimes using Israel’s method. As an example, we apply this formulation to known plane symmetric spacetimes. We take the Taub’s static metric in the interior region whereas Kasner’s non-static metric in the exterior region. It is shown that the plane collapses in some cases whereas it expands in som...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Mathematical Physics
سال: 1968
ISSN: 0022-2488,1089-7658
DOI: 10.1063/1.1664495