24 citations · 41 across the 9 of their papers we have counts for
9 papers
Towards correlated random networks
W. Pietsch
A model of correlated random networks is examined, i.e. networks with correlations between the degrees of neighboring nodes. These nodes do not necessarily have to be direct neighb…
On a suggested link between irreversibility and causality
W. Pietsch
It has been a long time issue in statistical physics how to combine reversible microscopic equations with irreversible macroscopic behavior. Recently, Evans and Searles have sugges…
Derivation of a Fluctuation Theorem from the probabilistic definition of entropy
W. Pietsch
It will be shown, how the Boltzmannian ideas on statistical physics can be naturally applied to nonequilibrium thermodynamics. A similar approach for treating nonequilibrium phenom…
Derivation of the percolation threshold for the network model of Barabasi and Albert
W. Pietsch
The percolation threshold of the network model by Barabasi and Albert (BA-model) [Science 286, 509 (1999)] has thus far only been 'guessed' based on simulations and comparison with…
Correlations in Scale-Free Networks: Tomography and Percolation
R. Xulvi-Brunet, W. Pietsch, I. M. Sokolov
We discuss three related models of scale-free networks with the same degree distribution but different correlation properties. Starting from the Barabasi-Albert construction based…
New NLS1 galaxies detected among RASS galaxies
W. Pietsch, K. Bischoff, Th. Boller
Six Narrow-Line Seyfert 1 galaxies have been discovered in optical follow-up spectroscopy of nuclei of galaxies selected for their high X-ray flux in the ROSAT All Sky Survey. We g…