ABSTRACT
If 01 <α , then 1<λ implies that one fi xed point exists in system (3.1), however, 01 <α is insignifi cant so we do not give consideration.
bifurcation appears. As λ increases, the amount of fi xed point continue to grow until ,5699.3=λ when
The same argument holds for the second equation in formula (3.1). Let 01 =α : When
