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The influence of mobility rate on spiral waves in spatial rock-paper-scissors games
Mobilia, Mauro; Rucklidge, Alastair M.; Szczesny, Bartosz - In: Games 7 (2016) 3, pp. 1-12
We consider a two-dimensional model of three species in rock-paper-scissors competition and study the self-organisation of the population into fascinating spiraling patterns. Within our individual-based metapopulation formulation, the population composition changes due to cyclic dominance...
Persistent link: https://www.econbiz.de/10011550519
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Advertising Versus Sales In Demand Creation
Hochman, Gal; Hochman, Oded - Economics Department, Ben Gurion University of the Negev - 2009
Using an analytical model, we investigate the dynamics of a firm with market power whose advertisements and sales contribute to its customers’ stock of goodwill. An advertising campaign precedes the firm’s sales when customers are not familiar with its product, (e.g., movies), whereas sales...
Persistent link: https://www.econbiz.de/10008635676
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Random walk approach to the analytic solution of random systems with multiplicative noise—The Anderson localization problem
Kuzovkov, V.N.; von Niessen, W. - In: Physica A: Statistical Mechanics and its Applications 369 (2006) 2, pp. 251-265
localized states is treated as a generalized diffusion with a noise-induced first-order phase transition. The generalized … diffusion manifests itself in the divergence of averages of wavefunctions (correlators). This divergence is controlled by the … Lyapunov exponent γ, which is the inverse of the localization length, ξ=1/γ. The appearance of the generalized diffusion arises …
Persistent link: https://www.econbiz.de/10011061349
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Optimal Control in Space and Time and the Management of Environmental Resources
Brock, William; Xepapadeas, Anastasios; Yannacopoulos, … - Department of International and European Economic … - 2014
We present methods and tools that can be used to study dynamic environmental resource management in a spatial setting, to explore spatially dependent regulation, and to understand pattern formation.In particular we present the maximum principle and its use in the context of the emerging frontier...
Persistent link: https://www.econbiz.de/10010859447
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Optimal Control in Space and Time and the Management of Environmental Resources
Brock, W.A.; Xepapadeas, A.; Yannacopoulos, A.N. - In: Annual Review of Resource Economics 6 (2014) 1, pp. 33-68
We present methods and tools that can be used to study dynamic environmental resource management in a spatial setting, to explore spatially dependent regulation, and to understand pattern formation. In particular, we present the maximum principle and its use in the context of the emerging...
Persistent link: https://www.econbiz.de/10010951583
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Colony patterning and collective hyphal growth of filamentous fungi
Matsuura, Shu - In: Physica A: Statistical Mechanics and its Applications 315 (2002) 1, pp. 125-136
Colony morphology of wild and mutant strains of Aspergillus nidulans at various nutrient and agar levels was investigated. Two types of colony patterning were found for these strains. One type produced uniform colonies at all nutrient and agar levels tested, and the other exhibited morphological...
Persistent link: https://www.econbiz.de/10010590115
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Simulation of proliferation and differentiation of cells in a stem-cell niche
Zhdanov, Vladimir P. - In: Physica A: Statistical Mechanics and its Applications 387 (2008) 24, pp. 6126-6136
Stem-cell niches represent microscopic compartments formed of environmental cells that nurture stem cells and enable them to maintain tissue homeostasis. The spatio–temporal kinetics of proliferation and differentiation of cells in such niches depend on the specifics of the niche structure and...
Persistent link: https://www.econbiz.de/10010590630
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Pseudospectral method of solution of the Fitzhugh–Nagumo equation
Olmos, Daniel; Shizgal, Bernie D. - In: Mathematics and Computers in Simulation (MATCOM) 79 (2009) 7, pp. 2258-2278
in the form of two coupled reaction diffusion equations for activator and inhibitor variables. The diffusion coefficient …
Persistent link: https://www.econbiz.de/10010870560
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Statistical methods for assessing and managing wild populations
Hoyle, Simon David - 2005
This thesis is presented as a collection of five papers and one report, each of which has been either published after peer review or submitted for publication. It covers a broad range of applied statistical methods, from deterministic modelling to integrated Bayesian modelling using MCMC, via...
Persistent link: https://www.econbiz.de/10009438291
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Conditions for cooperation to be more abundant than defection in a hierarchically structured population
Kroumi, Dhaker; Lessard, Sabin - In: Dynamic games and applications : DGA 5 (2015) 2, pp. 239-262
Persistent link: https://www.econbiz.de/10011312622