منابع مشابه
Bianchi Type IX M-Branes
We present new M2 and M5 brane solutions in M-theory based on transverse selfdual Bianchi type IX space. All the other recently M2 and M5 branes constructed on transverse self-dual Taub-NUT, Egughi-Hanson and Atiyah-Hitchin spaces are special cases of this solution. The solution provides a smooth transition from Eguchi-Hanson type I based M branes to corresponding branes based on Eguchi-Hanson ...
متن کاملSigma Models in Supergravity: Bianchi type IX Instantons and Cosmologies
We find instanton/cosmological solutions with biaxial Bianchi-IX symmetry, involving nontrivial spatial dependence of the CP and CP -sigma-models coupled to gravity. Such manifolds arise in N = 1, d = 4 supergravity with supermatter actions and hence the solutions can be embedded in supergravity. There is a natural way in which the standard coordinates of these manifolds can be mapped into the ...
متن کاملThe Bianchi Ix Attractor
We consider the asymptotic behaviour of spatially homogeneous spacetimes of Bianchi type IX close to the singularity (we also consider some of the other Bianchi types, e. g. Bianchi VIII in the stiff fluid case). The matter content is assumed to be an orthogonal perfect fluid with linear equation of state and zero cosmological constant. In terms of the variables of Wainwright and Hsu, we have t...
متن کاملQuantization of the Bianchi type-IX model in supergravity.
Diagonal Bianchi type-IX models are studied in the quantum theory of N = 1 super-gravity with a cosmological constant. It is shown, by imposing the supersymmetry and Lorentz quantum constraints, that there are no physical quantum states in this model. The k = +1 Friedmann model in supergravity with cosmological constant does admit quantum states. However, the Bianchi type-IX model provides a be...
متن کاملBianchi Type IX Cosmological Model with Varying Lambda Term
Bianchi Type IX Cosmological Model with Varying Lambda Term R.K. Tiwari*, Devendra Kumar Tiwari *, C.Chauhan** *Dept. of Mathematics, Govt. Model Science College, Rewa-486001 (M.P.), India **Dept. of Mathematics, I.E.T. DAVV Indore (M.P.), India __________________________________________________________________________________________ Abstract: We have investigated Bianchi type IX space time in...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 1997
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.55.1896