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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.1
- 수록면
- 761 - 779 (19page)
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The object of the present paper is to study weakly Z symmetric spacetimes (WZS)4. At rst we prove that a weakly Z symmetric spacetime is a quasi-Einstein spacetime and hence a perfect uid spacetime. Next, we consider conformally at (WZS)4 spacetimes and prove that such a spacetime is in nitesimally spatially isotropic relative to the unit timelike vector field. We also study (WZS)4 spacetimes with divergence free conformal curvature tensor. Moreover, we characterize dust uid and viscous uid (WZS)4 spacetimes. Finally, we construct an example of a (WZS)4 spacetime.
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참고문헌 (34)
참고문헌 신청
L. Alias / 1995 / Geometry and Topology of Submanifolds VII / World Sci. Publ. :67~70
A. Barnes / 1973 / On shear free normal ows of a perfect uid / Gen. Relativity Gravitation 4:105~129
J. K. Beem / 1996 / Global Lorentzian Geometry / Marcel Dekker, Inc
F. Brickell / 1970 / Differentiable manifolds / Van Nostrand Reinhold Company
M. C. Chaki / 1988 / On pseudo Ricci symmetric manifolds / Bulgar. J. Phys 15:526~531
A. Barnes / 1973 / On shear free normal ows of a perfect uid / Gen. Relativity Gravitation 4:105~129
J. K. Beem / 1996 / Global Lorentzian Geometry / Marcel Dekker, Inc
F. Brickell / 1970 / Differentiable manifolds / Van Nostrand Reinhold Company
M. C. Chaki / 1988 / On pseudo Ricci symmetric manifolds / Bulgar. J. Phys 15:526~531
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