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Type: Artigo de periódico
Title: Fuzzy modelling in population dynamics
Author: Barros, LC
Bassanezi, RC
Tonelli, PA
Abstract: The aim of this paper is to analyze the behavior of models which describe the population dynamics taking into account the subjectivity in the state variables or in the parameters. The models in this work have demographic and environmental fuzziness. The environmental fuzziness is presented using a life expectancy model where the fuzziness of parameters is considered. The demographic fuzziness is presented using the continuous Malthus and logistic discrete models. An outstanding result in this case is the emergence of new fixed points and bifurcation values to the discrete logistic model with subjective state variables in form of fuzzy sets. An interpretation is offered for this fact which differs from the deterministic one. (C) 2000 Elsevier Science B.V. All rights reserved.
Subject: fuzzy modelling
demographic and environmental fuzziness
population dynamics
Country: Holanda
Editor: Elsevier Science Bv
Rights: fechado
Identifier DOI: 10.1016/S0304-3800(99)00223-9
Date Issue: 2000
Appears in Collections:Unicamp - Artigos e Outros Documentos

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