211 citations · 982 across the 24 of their papers we have counts for
15 papers · 1 filter
Integrable and Chaotic 4-Dimensional Lotka-Volterra Models and Population Sustainability
H. Christodoulidi, T. E. Kouloukas, L. B. Drossos +1
We examine a 4-dimensional generalization of predator-prey models describing interactions among four species. We show that these systems exhibit a rich variety of asymptotic behavi…
Dynamics and Statistics of the Fermi--Pasta--Ulam --model with different ranges of particle interactions
Helen Christodoulidi, Tassos Bountis, Constantino Tsallis +1
In the present work we study the Fermi--Pasta--Ulam (FPU) --model involving long--range interactions (LRI) in both the quadratic and quartic potentials, by introducing two indep…
Numerical integration of variational equations for Hamiltonian systems with long range interactions
Helen Christodoulidi, Tassos Bountis, Lambros Drossos
We study numerically classical 1-dimensional Hamiltonian lattices involving inter-particle long range interactions that decay with distance like 1/r^alpha, for alpha>=0. We demonst…
Coupled symplectic maps as models for subdiffusive processes in disordered Hamiltonian lattices
Chris G. Antonopoulos, Tassos Bountis, Lambros Drossos
We investigate dynamically and statistically diffusive motion in a chain of linearly coupled 2-dimensional symplectic McMillan maps and find evidence of subdiffusion in weakly and…
Fermi-Pasta-Ulam model with long-range interactions: Dynamics and thermostatistics
Helen Christodoulidi, Constantino Tsallis, Tassos Bountis
We introduce and numerically study a long-range-interaction generalization of the one-dimensional Fermi-Pasta-Ulam (FPU) model. The standard quartic interaction is generalized…
Chimera States in a Two-Population Network of Coupled Pendulum-Like Elements
Tassos Bountis, Vasileios G. Kanas, Johanne Hizanidis +1
More than a decade ago, a surprising coexistence of synchronous and asynchronous behavior called the chimera state was discovered in networks of nonlocally coupled identical phase…