In this paper, we discuss focal quantities and bifurcation of limit cycles forE^1_3 systems. By means of the algorithm designed in [l] and by computing, weanalyse completely the conditions for the origin being a cente...In this paper, we discuss focal quantities and bifurcation of limit cycles forE^1_3 systems. By means of the algorithm designed in [l] and by computing, weanalyse completely the conditions for the origin being a center and the orderof the origin being a fine focus in the both cases of B/0 and B= 0 for E^1_3systems.展开更多
文摘In this paper, we discuss focal quantities and bifurcation of limit cycles forE^1_3 systems. By means of the algorithm designed in [l] and by computing, weanalyse completely the conditions for the origin being a center and the orderof the origin being a fine focus in the both cases of B/0 and B= 0 for E^1_3systems.
