INFORMATICA International Journal Main Page Editorial Board Abstracting/Indexing Instructions to Authors Subscription Information Contents Author Index Papers in Production		INFORMATICA, 1999, Vol. 10, No. 4, 441-456 © Institute of Mathematics and Informatics, Vilnius, 1998 ISSN 0868-4952 On the Population Evolution Problem with the Harmonic Mean Type Mating Law and Females' Pregnancy Vladas SKAKAUSKAS Faculty of Mathematics and Informatics, Vilnius University Naugarduko 24, 2600 Vilnius, Lithuania E-mail: vladas.skakauskas@maf.vu.lt Abstract A model for an age-sex-structured nonlimited population dynamics with the harmonic mean type mating law and females' pregnancy is presented. The existence and uniqueness theorem for the general case of vital rates is proved, the extinction and growth of the population are considered, and a class of the product (separable) solutions is obtained. Keywords: population dynamics, random mating, age-sex-structured population To preview Lithuanian abstract see full article text To preview full article text in PDF format click here You could obtain free Acrobat Reader from Adobe
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