Bifurcation from zero or infinity in nonlinearizable Sturm–Liouville problems with indefinite weight

In this paper, we consider bifurcation from zero or infinity of nontrivial solutions the nonlinear Sturm–Liouville problem with indefinite weight. This is mainly important because it related a selection-migration model in genetic population. We show existence four families unbounded continua to bifurcating intervals line trivial R × {∞} (these are called intervals). Moreover, these global have usual nodal properties some neighborhoods intervals.