On constant-sign periodic solutions in modelling the spread of interdependent epidemics

• Autores: Ravi P. Agarwal, Donal O'Regan, Patricia J. Y. Wong
• Localización: Anziam journal: The Australian & New Zealand industrial and applied mahtematics journal, ISSN 1446-1811, Vol. 47, Nº 3, 2006, págs. 309-332
• Idioma: inglés
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• Resumen

  • We consider the following model that describes the spread of n types of epidemics which are interdependent on each other. Our aim is to establish criteria such that the above system has one or multiple constant-sign periodic solutions , that is, for each is periodic and where is fixed. Examples are also included to illustrate the results obtained.