Complex population dynamics as a competition between multiple-time-scale phenomena
نویسندگان
چکیده
منابع مشابه
Complex population dynamics as a competition between multiple-time-scale phenomena.
The role of the selection pressure and mutation amplitude on the behavior of a single-species population evolving on a two-dimensional lattice, in a periodically changing environment, is studied both analytically and numerically. The mean-field level of description allows one to highlight the delicate interplay between the different time-scale processes in the resulting complex dynamics of the ...
متن کاملDebt contracts and collapse as competition phenomena
We study financial intermediation in which sufficient sorting is impossible. We identify a new type of market failure that may occur even when returns of investing entrepreneurs are verifiable. Moreover, we suggest that the nature of competition determines the contracts banks offer. A monopoly bank will offer equity contracts. In any pure strategy equilibrium when lenders compete à la Bertrand,...
متن کاملA parallel multiple time-scale reversible integrator for dynamics simulation
We investigate parallelizable schemes for simulating dynamics of conservative systems admitting a decomposition into weakly coupled subsystems. A new method, related to Reversible Averaging [20], is introduced for constrained and unconstrained dynamics. Stability issues are discussed.
متن کاملTime-Reversible Multiple Time Scale ab Initio Molecular Dynamics
We have developed previously ab initio molecular dynamics (AIMD) algorithms utilizing local molecular wave functions with atom-centered bases. The expense of such methods led us to explore means to employ multiple time step schemes to reduce costs. Herein we report our second implementation of such a scheme. In particular, our previous multiple time step AIMD method has been improved substantia...
متن کاملNoise Induced Phenomena in Population Dynamics
Noise through its interaction with the nonlinearity of the living systems can give rise to counter-intuitive phenomena. In this paper we shortly review noise induced effects in different ecosystems, in which two populations compete for the same resources. We also present new results on spatial patterns of two populations, while modeling real distributions of anchovies and sardines. The transien...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review E
سال: 2007
ISSN: 1539-3755,1550-2376
DOI: 10.1103/physreve.76.011908