Results 21 to 30 of about 2,181,379 (230)

Nonlinear evolution in high-density QCD [PDF]

Nuclear Physics B, 2002
31 pages, LaTeX, 3 ...
Balitsky, I.I., Belitsky, A.V.
openaire   +2 more sources

Conserved densities for linear evolution systems [PDF]

Communications in Mathematical Physics, 1981
A general discussion of the conservation laws for simple linear evolution systems is presented. The analysis is based upon an extension of the Gel'fand-Dikii symbolic algorithm to cover pseudo-differential operators. These techniques are applied to obtain all the conserved densities ϱ[u] for the free Klein-Gordon and Dirac equations with nonzero mass.
Abellanas, L., Galindo, A.
openaire   +2 more sources

Evolution of density perturbations in a realistic universe

, 2005
Prompted by the recent more precise determination of the basic cosmological parameters and growing evidence that the matter-energy content of the universe is now dominated by dark energy and dark matter we present the general solution of the equation ...
A. Friedman, A.D. Chernin, Andrzej Woszczyna, D. Heath, E.J. Groth, E.L. Ince, E.M. Lifshitz, E.R. Harrison, E.T. Whittaker, G.F.R. Ellis, H. Kodama, H.P. Robertson, I.K. Rozgacheva, J. Ehlers, K. Heune, M. Goliath, M. Guyot, Marek Demianski, N.A. Bahcall, P. Mészáros, P.J.E. Peebles, R. Brandenberger, R. Stabell, S. Bildhauer, S. Weinberg, T. Padmanabhan, V.A. Belinsky, Zdzisław A. Golda   +27 more
core   +1 more source

Modelling Shear Flows with SPH and Grid Based Methods [PDF]

, 2010
Given the importance of shear flows for astrophysical gas dynamics, we study the evolution of the Kelvin-Helmholtz instability (KHI) analytically and numerically. We derive the dispersion relation for the two-dimensional KHI including viscous dissipation.
Agertz, Agertz, Andreas Burkert, Balsara, Banerjee, Benz, Bland-Hawthorn, Burkert, Burkert, Carroll, Chandrasekhar, Colella, Couchman, Daniel Price, Das, Dekel, Diemand, Español, Evrard, Fabian Heitsch, Flebbe, Fryxell, Funada, Gingold, Grcevich, Gritschneder, Gritschneder, Heinzeller, Heitsch, Hernquist, Hockney, Jesseit, Kaiser, Katz, Kotarba, Lanzafame, Lattanzio, Lucy, MacNeice, Marc Schartmann, Markus Wetzstein, Marri, Mignone, Monaghan, Monaghan, Monaghan, Morris, Murray, Naab, Navarro, Nelson, Park, Price, Quilis, Read, Ritchie, Robertson, Schuessler, Serna, Sijacki, Springel, Springel, Stefanie Walch, Steinmetz, Steinmetz, Takeda, Thacker, Thacker, Thomas, Veronika Junk, Vietri, Wadsley, Walch, Wetzstein   +73 more
core   +3 more sources

Nonlinear Evolution of Density Perturbations

, 1993
: From the epoch of recombination $(z\approx 10^3)$ till today, the typical density contrasts have grown by a factor of about $10^6$ in a Friedmann universe with $ =1$. However, during the same epoch the typical gravitational potential has grown only by a factor of order unity. We present theoretical arguments explaining the origin of this approximate
Bagla, J. S., Padmanabhan, T.
openaire   +2 more sources

A Langevin equation for high energy evolution with pomeron loops [PDF]

, 2004
We show that the Balitsky-JIMWLK equations proposed to describe non-linear evolution in QCD at high energy fail to include the effects of fluctuations in the gluon number, and thus to correctly describe both the low density regime and the approach ...
Albacete, Albacete, Armesto, Armesto, Balitsky, Balitsky, Balitsky, Balitsky, Balitsky, Bartels, Bartels, Bartels, Bartels, Blaizot, Braun, Brunet, Brunet, Brunet, D.N. Triantafyllopoulos, E. Iancu, Ewerz, Ewerz, Ewerz, Ferreiro, Fisher, Golec-Biernat, Golec-Biernat, Gribov, Iancu, Iancu, Iancu, Iancu, Iancu, Iancu, Iancu, Iancu, Iancu, Iancu, Jalilian-Marian, Jalilian-Marian, Jalilian-Marian, Janik, Janik, Kolmogorov, Kovchegov, Kovchegov, Kovchegov, Kovchegov, Kuraev, Kuraev, Levin, Levin, Levin, Levin, Levin, Levin, Levin, Lipatov, Lublinsky, McLerran, McLerran, McLerran, Moro, Mueller, Mueller, Mueller, Mueller, Mueller, Mueller, Mueller, Mueller, Munier, Munier, Munier, Panja, Panja, Parisi, Pechenik, Rummukainen, Salam, Salam, Staśto, Triantafyllopoulos, Van Saarloos, Weigert   +84 more
core   +1 more source

Personalizing the Pediatric Hematology/Oncology Fellowship: Adapting Training for the Next Generation

Pediatric Blood &Cancer, EarlyView.
ABSTRACT The pediatric hematology‐oncology fellowship training curriculum has not substantially changed since its inception. The first year of training is clinically focused, and the second and third years are devoted to scholarship. However, this current structure leaves many fellows less competitive in the current job market, resulting in ...
Scott C. Borinstein, Melissa J. Rose, Scott Moerdler, Richard Ho   +3 more
wiley   +1 more source

Turbulence decay in the density-stratified intracluster medium

, 2019
Turbulence evolution in a density-stratified medium differs from that of homogeneous isotropic turbulence described by the Kolmogorov picture. We evaluate the degree of this effect in the intracluster medium (ICM) with hydrodynamical simulations. We find
Shi, Xun, Zhang, Congyao
core   +1 more source

Scaling Evolution of Universal Dark-Matter Halo Density Profiles [PDF]

, 1998
Dark-matter halos show a universal density profile with a scaling such that less massive systems are typically denser. This mass-density relation is well described by a proportionality between the characteristic density of halos and the mean cosmic ...
Andreu Raig, Eduard Salvador-Solé, Guillermo González-Casado, Tormen G.   +3 more
core   +3 more sources

Density Evolution for Asymmetric Memoryless Channels [PDF]

IEEE Transactions on Information Theory, 2005
Density evolution is one of the most powerful analytical tools for low-density parity-check (LDPC) codes and graph codes with message passing decoding algorithms. With channel symmetry as one of its fundamental assumptions, density evolution (DE) has been widely and successfully applied to different channels, including binary erasure channels, binary ...
Wang, C. -C., Kulkarni, S. R., Poor, H. V.   +2 more
openaire   +2 more sources