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of 301
pro vyhledávání: '"Zia, R K P"'
Arguably, the most fundamental problem in Network Science is finding structure within a complex network. One approach is to partition the nodes into communities that are more densely connected than one expects in a random network. "The" community str
Externí odkaz:
http://arxiv.org/abs/2411.00977
Autor:
Zia, R. K. P.
Publikováno v:
Journal of Physics A 57, 285003 (2024)
The evolution of physical systems are often modeled by simple Markovian processes. When settled into stationary states, the probability distributions of such systems are time independent, by definition. However, they do not necessarily fall within th
Externí odkaz:
http://arxiv.org/abs/2402.14738
Publikováno v:
Phys. Rev. E 104, 064135 (2021)
An investigation of the two-dimensional Widom-Rowlinson lattice gas under an applied drive uncovered a remarkable non-equilibrium steady state in which uniform stripes (reminiscent of an equilibrium lamellar phase) form perpendicular to the drive dir
Externí odkaz:
http://arxiv.org/abs/2109.14750
Publikováno v:
J. Stat. Mech. 013402:1-28 (2022)
We investigate the long-time properties of a dynamic, out-of-equilibrium network of individuals holding one of two opinions in a population consisting of two communities of different sizes. Here, while the agents' opinions are fixed, they have a pref
Externí odkaz:
http://arxiv.org/abs/2107.13945
Publikováno v:
Phys. Rev. E 104, 044311 (2021)
We consider a dynamic network of individuals that may hold one of two different opinions in a two-party society. As a dynamical model, agents can endlessly create and delete links to satisfy a preferred degree, and the network is shaped by \emph{homo
Externí odkaz:
http://arxiv.org/abs/2106.15963
Unlike typical phase transitions of first and second order, a system displaying the Thouless effect exhibits characteristics of both at the critical point (jumps in the order parameter and anomalously large fluctuations). An $extreme$ Thousless effec
Externí odkaz:
http://arxiv.org/abs/1910.00141
Though the Boltzmann-Gibbs framework of equilibrium statistical mechanics has been successful in many arenas, it is clearly inadequate for describing many interesting natural phenomena driven far from equilibrium. The simplest step towards that goal
Externí odkaz:
http://arxiv.org/abs/1909.10505
If a system undergoing phase transitions exhibits some characteristics of both first and second order, it is said to be of 'mixed order' or to display the Thouless effect. Such a transition is present in a simple model of a dynamic social network, in
Externí odkaz:
http://arxiv.org/abs/1809.00373
Co-evolution of nodes and links: diversity driven coexistence in cyclic competition of three species
Publikováno v:
Phys. Rev. E 99, 022309 (2019)
When three species compete cyclically in a well-mixed, stochastic system of $N$ individuals, extinction is known to typically occur at times scaling as the system size $N$. This happens, for example, in rock-paper-scissors games or conserved Lotka-Vo
Externí odkaz:
http://arxiv.org/abs/1808.05875
Autor:
Dickman, Ronald, Zia, R. K. P.
In the Widom-Rowlinson lattice gas, two particle species (A, B) diffuse freely via particle-hole exchange, subject to both on-site exclusion and prohibition of A-B nearest-neighbor pairs. As an athermal system, the overall densities are the only cont
Externí odkaz:
http://arxiv.org/abs/1806.00641