Geodesic
Conditions of the survival of population in Nicholson's models with delay
Vestnik Ûžno-Uralʹskogo gosudarstvennogo universiteta. Seriâ, Matematika, mehanika, fizika, no. 3 (2010), pp. 29-32

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The Nicholson's model with delay describing dynamics of the magnitude of population is considered. Properties of the model solutions are analyzed, equal apartness of solutions from zero is proved and a lower estimation of decisions as function of the model parameters is found. A two-band model constructed on the basis of Nicholson's model is analyzed. The lower estimations of solutions with various parameters combinations are found.
Keywords: dynamics of the magnitude ofpopulation, apartness from zero, Nicholson's model. 
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     author = {A. D. Khokhlov},
     title = {Conditions of the survival of population in {Nicholson's} models with delay},
     journal = {Vestnik \^U\v{z}no-Uralʹskogo gosudarstvennogo universiteta. Seri\^a, Matematika, mehanika, fizika},
     pages = {29--32},
     publisher = {mathdoc},
     number = {3},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VYURM_2010_3_a3/}
}
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A. D. Khokhlov. Conditions of the survival of population in Nicholson's models with delay. Vestnik Ûžno-Uralʹskogo gosudarstvennogo universiteta. Seriâ, Matematika, mehanika, fizika, no. 3 (2010), pp. 29-32. http://geodesic.mathdoc.fr/item/VYURM_2010_3_a3/