Solutions of the linearized Bach-Einstein equation in the static spherically symmetric case

1985 ◽  
Vol 306 (4) ◽  
pp. 231-235 ◽  
Author(s):  
H.-J. Schmidt
Keyword(s):  
Einstein Equation ◽  
Symmetric Case ◽  
Spherically Symmetric

scholarly journals General relativistic Poynting-Robertson effect to diagnose wormholes existence: Static and spherically symmetric case

2020 ◽  
Vol 101 (10) ◽  
Author(s):  
Vittorio De Falco ◽  
Emmanuele Battista ◽  
Salvatore Capozziello ◽  
Mariafelicia De Laurentis
Keyword(s):  
Symmetric Case ◽  
Spherically Symmetric ◽  
General Relativistic

scholarly journals Cure for unstable numerical evolutions of single black holes: Adjusting the standard ADM equations in the spherically symmetric case

2001 ◽  
Vol 64 (8) ◽  
Author(s):  
Bernard Kelly ◽  
Pablo Laguna ◽  
Keith Lockitch ◽  
Jorge Pullin ◽  
Erik Schnetter ◽  
...  
Keyword(s):  
Black Holes ◽  
Symmetric Case ◽  
Spherically Symmetric

On the uniqueness of the Møller energy–momentum complex

1970 ◽  
Vol 48 (2) ◽  
pp. 225-228 ◽  
Author(s):  
Leopold Halpern ◽  
Milivoj J. Miketinac
Keyword(s):  
Cp Violation ◽  
Symmetric Case ◽  
Spherically Symmetric ◽  
Meson Field ◽  
Field Equations ◽  
Yang Mills ◽  
Momentum Complex ◽  
Mills Field

Møller's tetrad energy–momentum complex is made unique by introducing a suitable Yang–Mills field. The field equations are given and solved approximately for the spherically symmetric case. The simplest couplings to the K0 meson field are analyzed and it is shown that they cannot be used to resolve the CP violation.

scholarly journals Evolution of Planetary Nebulae Envelopes: An Empirical Approach

1993 ◽  
Vol 155 ◽  
pp. 370-370
Author(s):  
V.V. Golovaty ◽  
Yu. F. Malkov
Keyword(s):  
Integral Equation ◽  
Density Distribution ◽  
Radial Distribution ◽  
Empirical Investigation ◽  
Planetary Nebulae ◽  
Symmetric Case ◽  
Radio Continuum ◽  
Spherically Symmetric ◽  
Gas Density ◽  
Approximative Expression

We carried out the empirical investigation of the evolution of gas density distribution in the envelopes of planetary nebulae (PN). For this purpose we analysed the isophotal maps of 10 PN in the lines H alpha, H beta or in the optically thin radio continuum. To obtain the spatial radial distribution of gas density n(r) (where n = n(H)+n(He)) we used Abell's integral equation in the simplest, spherically-symmetric case. We found that n(r) for all PN envelopes in our sample can be described by an approximative expression:

Impact-generated dust clouds around planetary satellites: spherically symmetric case

2003 ◽  
Vol 51 (3) ◽  
pp. 251-269 ◽  
Author(s):  
Alexander V. Krivov ◽  
Miodrag Sremčević ◽  
Frank Spahn ◽  
Valeri V Dikarev ◽  
Konstantin V Kholshevnikov
Keyword(s):  
Symmetric Case ◽  
Spherically Symmetric ◽  
Dust Clouds ◽  
Planetary Satellites

scholarly journals NONEXTREME BLACK HOLES FROM INTERSECTING M-BRANES

1998 ◽  
Vol 13 (08) ◽  
pp. 1305-1328 ◽  
Author(s):  
NOBUYOSHI OHTA ◽  
TAKASHI SHIMIZU
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Higher Dimensions ◽  
Symmetric Case ◽  
Spherically Symmetric ◽  
Field Equations ◽  
Deformation Parameters ◽  
Special Cases ◽  
Two Parameter ◽  
Black Hole Solutions

We investigate the possibility of extending nonextreme black hole solutions made of intersecting M-branes to those with two nonextreme deformation parameters, similar to Reissner–Nordstrøm solutions. General analysis of possible solutions is carried out to reduce the problem of solving field equations to a simple algebraic one for static spherically-symmetric case in D dimensions. The results are used to show that the extension to two-parameter solutions is possible for D= 4,5 dimensions but not for higher dimensions, and that the area of horizon always vanishes in the extreme limit for black hole solutions for D≥6 except for two very special cases which are identified. Various solutions are also summarized.

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