scholarly journals Exact Solutions to Super Resolution on Semi-Algebraic Domains in Higher Dimensions

2017 ◽  
Vol 63 (1) ◽  
pp. 621-630 ◽  
Author(s):  
Yohann De Castro ◽  
F. Gamboa ◽  
Didier Henrion ◽  
J.-B. Lasserre
1998 ◽  
Vol 07 (01) ◽  
pp. 81-88
Author(s):  
A. BANERJEE ◽  
AJANTA DAS

Thick domain walls with nonvanishing stress component in the direction perpendicular to the plain of the wall are considered. Their exact solutions are obtained in the background of a five-dimensional spacetime. There may be both expanding and collapsing walls. The energy density decreases on both sides of the walls and the spacetime in all cases is found to be reflection symmetric with respect to the walls.


2012 ◽  
Vol 2012 ◽  
pp. 1-14
Author(s):  
Filipe C. Mena

We review recent results about the modelling of gravitational collapse to black holes in higher dimensions. The models are constructed through the junction of two exact solutions of the Einstein field equations: an interior collapsing fluid solution and a vacuum exterior solution. The vacuum exterior solutions are either static or containing gravitational waves. We then review the global geometrical properties of the matched solutions which, besides black holes, may include the existence of naked singularities and wormholes. In the case of radiating exteriors, we show that the data at the boundary can be chosen to be, in some sense, arbitrarily close to the data for the Schwarzschild-Tangherlini solution.


1993 ◽  
Vol 02 (01) ◽  
pp. 105-112 ◽  
Author(s):  
S. CHATTERJEE ◽  
N. BANERJEE ◽  
B. BHUI

We extend to higher dimensions an earlier work of Letelier where a Bianchi type I cosmological model with massive strings as source term is studied. Exact solutions are obtained assuming either an equation of state between the energy density and tension density of the string or an explicit form of one of the metric coefficients. The dynamical behavior of the models is studied and a comparison is made with the analogous four-dimensional case where it is interestingly observed that the string dominated phase lasts a longer period in multidimensional models compared to its four-dimensional analogs. The Kantowski-Sachs type of metric is also briefly discussed.


Acta Naturae ◽  
2017 ◽  
Vol 9 (4) ◽  
pp. 42-51
Author(s):  
S. S. Ryabichko ◽  
◽  
A. N. Ibragimov ◽  
L. A. Lebedeva ◽  
E. N. Kozlov ◽  
...  

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