98 citations · 129 across the 3 of their papers we have counts for
3 papers
cond-mat.stat-mech2007★ 25 cited
Phase Transition of XY Model in Heptagonal Lattice
Seung Ki Baek, Petter Minnhagen, Beom Jun Kim
We numerically investigate the nature of the phase transition of the XY model in the heptagonal lattice with the negative curvature, in comparison to other interaction structures s…
physics.soc-ph2007★ 98 cited
A High Robustness and Low Cost Model for Cascading Failures
Bing Wang, Beom Jun Kim
We study numerically the cascading failure problem by using artificially created scale-free networks and the real network structure of the power grid. The capacity for a vertex is…
cond-mat.stat-mech2007★ 6 cited
Scale-freeness for networks as a degenerate ground state: A Hamiltonian formulation
Petter Minnhagen, Sebastian Bernhardsson, Beom Jun Kim
The origin of scale-free degree distributions in the context of networks is addressed through an analogous non-network model in which the node degree corresponds to the number of b…