Observational Evidence from Supernovae for a Contracting Universe
New precision in measuring extragalactic distances using supernovae has confirmed with high probability an accelerating increase in redshift with distance.
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The spin-up of contracting red supergiants
We report on a mechanism which may lead to a spin-up of the surface of a rotating single star leaving
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Vector Perturbations in a Contracting Universe
In this note we show that vector perturbations exhibit growing mode solutions in a contracting Universe, such as the contracting
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Can Strange Nonchaotic Dynamics be induced through Stochastic Driving?
Upon addition of noise, chaotic motion in low-dimensional dynamical systems can sometimes be transformed into nonchaotic dynamics: namely, the largest
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From Infall to Rotation around Young Stars: The Origin of Protoplanetary Disks
The origin of disks surrounding young stars has direct implications for our understanding of the formation of planetary systems. In
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Bounce Models in Brane Cosmology and a Gravitational Stability Condition
Five-dimensional cosmological models with two 3-branes and with a buck cosmological constant are studied. It is found that for all
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Cosmological Anisotropy and the Cycling of Universe
In this paper, we analyze the anisotropy of the scale factor in the Kantowski-Sachs spacetime. We show that the anisotropy
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Dynamical evolution of rotating stellar systems: I pre-collapse, equal mass systems
The influence of rotation on the dynamical evolution of collisional stellar systems is investigated by solving the orbit-averaged Fokker-Planck equation
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From Big Crunch To Big Bang - Is It Possible?
We discuss the possibility of a transition from a contracting flat space - big crunch - to an expanding flat
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Hubble Redshift
The dependence of luminosity distance on observed resdhift and the cosmological parameters H and q is derived for a contracting
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Regularized dualities in patch cosmology
Following past investigations, we explore the symmetries of the Hamilton-Jacobi cosmological equations in the generalized patch formalism describing braneworld and
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SGRs and AXPs - Magnetars or Young Quark Stars ?
Recent measurements of the spin-down rates of soft gamma ray repeaters (SGRs) and anomalous X-ray pulsars (AXPs) have been interpreted
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Spin-Orbit Couplings in X-ray Binaries
We discuss the influence of tidal spin-orbit interactions on the orbital dynamics of close intermediate-mass X-ray binaries. In particular we
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The families of orthogonal, unitary and quaternionic unitary Cayley--Klein algebras and their central extensions
The families of quasi-simple or Cayley--Klein algebras associated to antihermitian matrices over R, C and H are described in a
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The Formation and Fragmentation of Primordial Molecular Clouds
Many questions in physical cosmology regarding the thermal history of the intergalactic medium, chemical enrichment, reionization, etc. are thought to
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