%0 Journal Article %T Bifurcation of Positive Equilibria in Nonlinear Structured Population Models with Varying Mortality Rates %A Christoph Walker %J Mathematics %D 2010 %I arXiv %X A parameter-dependent model involving nonlinear diffusion for an age-structured population is studied. The parameter measures the intensity of the mortality. A bifurcation approach is used to establish existence of positive equilibrium solutions. %U http://arxiv.org/abs/1002.1788v1