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- Centre National de la Recherche ScientifiqueFR493 papers
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12 papers · 1 filter
Improving the false nearest neighbors method with graphical analysis
T. Aittokallio, M. Gyllenberg, J. Hietarinta +2
We introduce a graphical presentation for the false nearest neighbors (FNN) method. In the original method only the percentage of false neighbors is computed without regard to the…
Theoretical aspects of the inverse Tully-Fisher relation as a distance indicator: incompleteness in log(V_Max), the relevant slope, and the calibrator sample bias
P. Teerikorpi, T. Ekholm, M. O. Hanski +1
We study the influence of the assumption behind the use of the inverse Tully-Fisher relation: that there should be no observational cutoffs in the TF parameter log(V_M). It is note…
Non-Equilibrium Universe and Black Hole Evaporation
I. Vilja
The evaporation of the black holes during the very early universe is studied. Starting from black hole filled universe, the distiributions of particle species are calculated and sh…
Faddeev-Hopf knots: Dynamics of linked un-knots
Jarmo Hietarinta, Petri Salo
We have studied numerically Faddeev-Hopf knots, which are defined as those unit-vector fields in that have a nontrivial Hopf charge and minimize Faddeev's Lagrangian. A given…
Electroweak Baryogenesis in a Left-Right Supersymmetric Model
Tuomas Multamaki, Iiro Vilja
The possibility of electroweak baryogenesis is considered within the framework of a left-right supersymmetric model. It is shown that for a range of parameters the large sneutrino…
Damping rates in the MSSM and electroweak baryogenesis
Per Elmfors, Kari Enqvist, Antonio Riotto +1
We present an analysis of the thermalization rate of Higgsinos and winos based on the imaginary part of the two-point Green function in the {\it unbroken} phase of the MSSM. We use…