ABSTRACT
The model considered in this paper is described by the following system of nonlinear ordinary differential equations () x ˙ 1 = x 1 r 1 − x 1 − δ 1 y 1 + ε x 2 − x 1 x 2 = x 2 r 2 − x 2 − δ 2 y 2 + ε x 1 − x 2 y ˙ 1 = y 1 − r 3 + d 1 δ 1 x 1 y ˙ 2 = y 2 − r 4 + d 2 δ 2 x 2 x i ( 0 ) ⩾ 0 , y i ( 0 ) ⩾ 0 , i = 1 , 2 https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003067498/6ba0c26b-f086-40cc-86ed-1693dc596221/content/eq4540.tif"/>
