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- Agata Fronczak, Piotr Fronczak, Janusz A Hołyst
- Physical review. E, Statistical, nonlinear, and…
- 2004

Analytic solution for the average path length in a large class of uncorrelated random networks with hidden variables is found. We apply the approach to classical random graphs of Erdös and Rényi… (More)

- Julian Sienkiewicz, Janusz A Hołyst
- Physical review. E, Statistical, nonlinear, and…
- 2005

Public transport systems in 22 Polish cities have been analyzed. The sizes of these networks range from N = 152 to 2881. Depending on the assumed definition of network topology, the degree… (More)

A two-dimensional map describing chaotic behaviour of an economic model has been stabilized on various periodic orbits by the use of Pyragas time-delayed feedback control. The method avoids fancy… (More)

- Krzysztof Suchecki, Janusz A Hołyst
- Physical review. E, Statistical, nonlinear, and…
- 2006

We investigate analytically the behavior of the Ising model on two connected Barabasi-Albert networks. Depending on relative ordering of both networks there are two possible phases corresponding to… (More)

- Krzysztof Suchecki, Janusz A Hołyst
- Physical review. E, Statistical, nonlinear, and…
- 2009

In this paper, we investigate the behavior of the Ising model on two sparsely connected complex networks. The networks have the topology of a random graph or Barabási and Albert scale-free networks.… (More)

- Krzysztof Urbanowicz, Janusz A Hołyst
- Physical review. E, Statistical, nonlinear, and…
- 2003

We present a method of noise-level estimation that is valid even for high noise levels. The method makes use of the functional dependence of coarse-grained correlation entropy K2(epsilon ) on the… (More)

- Agata Fronczak, Piotr Fronczak, Janusz A Hołyst
- Physical review. E, Statistical, nonlinear, and…
- 2003

We applied a mean-field approach to study clustering coefficients in Barabási-Albert (BA) networks. We found that the local clustering in BA networks depends on the node degree. Analytic results have… (More)

- Renaud Lambiotte, Marcel Ausloos, Janusz A Hołyst
- Physical review. E, Statistical, nonlinear, and…
- 2007

We focus on the majority model in a topology consisting of two coupled fully connected networks, thereby mimicking the existence of communities in social networks. We show that a transition takes… (More)

- Anna Chmiel, Kamila Kowalska, Janusz A Hołyst
- Physical review. E, Statistical, nonlinear, and…
- 2009

We investigated flows of visitors migrating between different portal subpages. Two various portals were studied as weighted networks where nodes are portal subpages and edge weights are numbers of… (More)

- Bernard Kujawski, Janusz A Hołyst, Geoff J. Rodgers
- Physical review. E, Statistical, nonlinear, and…
- 2007

We present an empirical study of the networks created by users within internet news groups and forums and show that they organize themselves into scale-free trees. The structure of these trees… (More)