Space-Time Analogy of Self-Similar Intense Vortices

AIAA Journal ◽  
2006 ◽  
Vol 44 (4) ◽  
pp. 912-917 ◽  
Author(s):  
Georgios H. Vatistas ◽  
Yasser Aboelkassem
Keyword(s):  
Space Time ◽  
Self Similar ◽  
Time Analogy

Interferometry in Acoustic-Data Processing Using Extended Antennas. Space–Time Analogy

2020 ◽  
Vol 28 (4) ◽  
pp. 326-332
Author(s):  
I. V. Kaznacheev ◽  
V. M. Kuz’kin ◽  
M. V. Kutsov ◽  
G. A. Lyakhov ◽  
S. A. Pereselkov
Keyword(s):  
Data Processing ◽  
Space Time ◽  
Acoustic Data ◽  
Time Analogy

scholarly journals Even perturbations of the self-similar Vaidya space-time

2005 ◽  
Vol 71 (10) ◽  
Author(s):  
Brien C. Nolan ◽  
Thomas J. Waters
Keyword(s):  
Space Time ◽  
The Self ◽  
Self Similar

Space–time analogy for partially coherent plane-wave-type pulses

2005 ◽  
Vol 30 (22) ◽  
pp. 2973 ◽  
Author(s):  
Jesús Lancis ◽  
Víctor Torres-Company ◽  
Enrique Silvestre ◽  
Pedro Andrés
Keyword(s):  
Plane Wave ◽  
Space Time ◽  
Wave Type ◽  
Partially Coherent ◽  
Time Analogy

scholarly journals NON-MARGINALLY BOUND INHOMOGENEOUS DUST COLLAPSE IN HIGHER DIMENSIONAL SPACE–TIME

2003 ◽  
Vol 12 (04) ◽  
pp. 639-648 ◽  
Author(s):  
S. G. GHOSH ◽  
A. BANERJEE
Keyword(s):  
Gravitational Collapse ◽  
Dimensional Space ◽  
Dust Cloud ◽  
Naked Singularity ◽  
Space Time ◽  
Higher Dimensional Space Time ◽  
Higher Dimensional ◽  
Dimensional Space Time ◽  
Self Similar

We investigate the occurrence and nature of a naked singularity in the gravitational collapse of an inhomogeneous dust cloud described by a self-similar higher dimensional Tolman–Bondi space–time. Bound, marginally bound and unbound space–times are analyzed. The degree of inhomogeneity of the collapsing matter necessary to form a naked singularity is given.

scholarly journals EXACT STRING SOLUTIONS IN (2 + 1)-DIMENSIONAL DE SITTER SPACE-TIME

1994 ◽  
Vol 09 (29) ◽  
pp. 2745-2754 ◽  
Author(s):  
H. J. DE VEGA ◽  
A. V. MIKHAILOV ◽  
N. SÁNCHEZ
Keyword(s):  
Flat Space ◽  
De Sitter Space ◽  
Space Time ◽  
The Other ◽  
De Sitter ◽  
Expansion Factor ◽  
New Feature ◽  
The Universe ◽  
Time Analogy

Exact and explicit string solutions in de Sitter space-time are found. (Here, the string equations reduce to a sinh-Gordon model). A new feature without flat space-time analogy appears: starting with a single worldsheet, several (here two) strings emerge. One string is stable and the other (unstable) grows as the universe grows. Their invariant size and energy either grow as the expansion factor or tend to constant. Moreover, strings can expand (contract) for large (small) universe radius at a different rate than the universe does.

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