2 papers
math.DS2006
Stability of a Time-varying Fishing Model with Delay
L. Berezansky, L. Idels
We introduce a delay nonlinear differential equation model which describes how fish are harvested. In our previous studies we investigated the persistence of that equation and exis…
math.DS2006
Population Models With Delay in Dynamic Environment
L. Berezansky, L. Idels
We study the combined effects of periodically varying carrying capacity and survival rates on the fish population in the ocean (sea). We introduce the Getz type delay differential…