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The Mildly NonLinear Regime of Structure Formation
 PREPARED FOR SUBMISSION TO JCAP
, 2012
"... We present a simple physically motivated picture for the mildly nonlinear regime of structure formation, which captures the effects of the bulk flows. We apply this picture to develop a method to significantly reduce the sample variance in cosmological Nbody simulations at the scales relevant to ..."
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Cited by 15 (5 self)
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We present a simple physically motivated picture for the mildly nonlinear regime of structure formation, which captures the effects of the bulk flows. We apply this picture to develop a method to significantly reduce the sample variance in cosmological Nbody simulations at the scales relevant
The Distribution of Counts in Cells in the NonLinear Regime
, 1996
"... The PressSchechter approach is used to provide an approximate description of the counts in cells distribution in the nonlinear regime. Simple, illustrative models for the spatial distribution and internal structure of PressSchechter clumps are assumed. Then, these distributions of nonlinear Pre ..."
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The PressSchechter approach is used to provide an approximate description of the counts in cells distribution in the nonlinear regime. Simple, illustrative models for the spatial distribution and internal structure of PressSchechter clumps are assumed. Then, these distributions of nonlinear
Cosmological Perturbations: Entering the NonLinear Regime
, 1996
"... We consider oneloop corrections (nonlinear corrections beyond leading order) to the bispectrum and skewness of cosmological density fluctuations induced by gravitational evolution, focusing on the case of Gaussian initial conditions and scalefree initial power spectra, P(k) ∝ kn. As has been est ..."
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Cited by 3 (0 self)
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established by comparison with numerical simulations, treelevel (leading order) perturbation theory describes these quantities at the largest scales. Oneloop perturbation theory provides a tool to probe the transition to the nonlinear regime on smaller scales. In this work, we find that, as a function
Control is Not Required for Wireless Networks in the Linear Regime
 in Proc. of IEEE Intl. Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM), (Taormina  Giardini Naxos
, 2005
"... We consider the design of optimal strategies for joint power adaptation, rate adaptation and scheduling in a multihop wireless network. Most existing strategies control either power and scheduling, or rates and scheduling, but not all three together as we do. We assume the underlying physical layer ..."
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Cited by 8 (0 self)
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layer is in the linear regime (the rate of a link can be approximated by a linear function of the signaltointerferenceandnoise ratio), like in time hopping UWB (THUWB) and low gain CDMA systems, and that it allows finegrained rate adaptation, like in 802.11a/g, HDR/CDMA, THUWB. The goal
SCALING PROPERTIES OF GRAVITATIONAL CLUSTERING IN THE NONLINEAR REGIME
, 1993
"... The growth of density perturbations in an expanding universe in the nonlinear regime is investigated. The underlying equations of motion are cast in a suggestive form, and motivate a conjecture that the scaled pair velocity, h(a, x) ≡ −[v/(˙ax)] depends on the expansion factor a and comoving coord ..."
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The growth of density perturbations in an expanding universe in the nonlinear regime is investigated. The underlying equations of motion are cast in a suggestive form, and motivate a conjecture that the scaled pair velocity, h(a, x) ≡ −[v/(˙ax)] depends on the expansion factor a and comoving
LargeScale Structure Formation in the Quasilinear Regime
, 1996
"... The understanding of the largescale structure formation requires the resolution of coupled nonlinear equations describing the cosmic density and velocity fields. This is a complicated problem that, for the last decade, has been essentially addressed with Nbody simulations. There is however a regim ..."
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regime, the socalled quasilinear regime, for which the relative density fluctuations are on average below unity. It is then possible to apply Perturbation Theory techniques where the perturbation expansions are made with respect to the initial fluctuations. I review here the major results that have
Hydrodynamic fluctuations in the Kolmogorov flow: Linear regime
, 2008
"... The LandauLifshitz fluctuating hydrodynamics is used to study the statistical properties of the linearized Kolmogorov flow. The relative simplicity of this flow allows a detailed analysis of the fluctuation spectrum from near equilibrium regime up to the vicinity of the first convective instability ..."
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The LandauLifshitz fluctuating hydrodynamics is used to study the statistical properties of the linearized Kolmogorov flow. The relative simplicity of this flow allows a detailed analysis of the fluctuation spectrum from near equilibrium regime up to the vicinity of the first convective
The Spherical Accretion Shock Instability in the Linear Regime
, 2005
"... We use timedependent, axisymmetric, hydrodynamic simulations to study the linear stability of the stalled, spherical accretion shock that arises in the postbounce phase of corecollapse supernovae. We show that this accretion shock is stable to radial modes, with decay rates and oscillation freque ..."
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Cited by 1 (0 self)
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We use timedependent, axisymmetric, hydrodynamic simulations to study the linear stability of the stalled, spherical accretion shock that arises in the postbounce phase of corecollapse supernovae. We show that this accretion shock is stable to radial modes, with decay rates and oscillation
The Distribution of Pairwise Peculiar Velocities in the NonLinear Regime
, 1995
"... The distribution of pairwise relative peculiar velocities, f(u; r), on small nonlinear scales, r, is derived from the PressSchechter approach. This derivation assumes that PressSchechter clumps are virialized and isothermal. The virialized assumption requires that the circular velocity V c / M ..."
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The distribution of pairwise relative peculiar velocities, f(u; r), on small nonlinear scales, r, is derived from the PressSchechter approach. This derivation assumes that PressSchechter clumps are virialized and isothermal. The virialized assumption requires that the circular velocity V c / M
Results 1  10
of
4,556