We investigate the scaling properties of the edge distribution of soap froth and compare it with the area scaling law. The data collapse for edge scaling of cells belonging to the same topological class is explained by a harmonic expansion of the energy of the froth with area–perimeter...

The resistance of two-dimensional soap froth cellular network has been measured experimentally. The resistance increases nonlinearly after a transient period. An iterative map using the substitution of simple resistor network has been used to describe the experimental observation. Calculation is...

The ground state of the classical Heisenberg magnet on a square lattice with dilute frustrated bonds is found to be clusters of quartets of frustrated bonds forming ‘crosses’. As the temperature reaches T1, the cross phase changes to a mixed phase of singletons and pairs. At a much higher...

The fluctuation in the prices in a stock market can be separated into two time scales: a long term trend guided by financial principles and a short term trend governed by the specific trading mechanisms used. We proposed a mixed strategy for managing stock portfolios in which the long term trend...

Damage spreading(DS) of the random graph networks with power-law degree distributions is investigated using Glauber dynamics. Various subgraphs defined by the probability of acquaintance show distinct features in DS as measured by Hamming distance. A heuristic understanding of the long-time...

The organizational structure of a network is investigated with a simulated precipitation model which does not make use of prior knowledge about the community structure of the network. The result is presented as a structure profile through which various definitions of communities can be applied...