We explore the minimal conditions for sustainable cooperation on a spatially distributed
population of memoryless, unconditional strategies (cooperators and defectors) in presence of …

The effects of an unconditional move rule in the spatial Prisoner's Dilemma, Snowdrift and
Stag Hunt games are studied. Spatial structure by itself is known to modify the outcome of …

The Prisoner’s dilemma is the main game theoretical framework in which the onset and
maintainance of cooperation in biological populations is studied. In the spatial version of the …

We study the evolution of cooperation in evolutionary spatial games when the payoff
correlates with the increasing age of players (the level of correlation is set through a single …

We present a simple model for the possible mechanism of appearance of attraction between
like charged polyions inside a polyelectrolyte solution. The attraction is found to be short …

Monte Carlo simulations are used to study lattice gases of particles with extended hard cores
on a two-dimensional square lattice. Exclusions of one and up to five nearest neighbors (…

We study the distribution of domain areas, areas enclosed by domain boundaries (“hulls”),
and perimeters for curvature-driven two-dimensional coarsening, employing a combination of …

We consider the statistics of the areas enclosed by domain boundaries (“hulls”) during the
curvature-driven coarsening dynamics of a two-dimensional nonconserved scalar field from a …

It is well known that the 2D XY model exhibits an unusual infinite order phase transition
belonging to the Kosterlitz-Thouless (KT) universality class. Introduction of a nematic coupling …

Intransitivity is a property of connected, oriented graphs representing species interactions
that may drive their coexistence even in the presence of competition, the standard example …