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Table 1 Regions R of initial conditions

From: The roles of conic sections and elliptic curves in the global dynamics of a class of planar systems of rational difference equations

Parameter condition R
A 1 >0, A 2 >0 [0,∞)×[0,∞)
( A 1 = B 1 =0, A 2 0) or ( A 2 = B 2 =0, A 1 0) [0,∞)×(0,∞)
( A 1 = C 1 =0, A 2 0) or ( A 2 = C 2 =0, A 1 0) (0,∞)×[0,∞)
A 1 = B 1 =0, A 2 = B 2 =0 [0,∞)×(0,∞)
A 1 = C 1 =0, A 2 = C 2 =0 (0,∞)×[0,∞)
A 1 = C 1 =0, A 2 = B 2 =0 [0,∞)×[0,∞)(0,0)
A 1 = B 1 =0, A 2 = C 2 =0 [0,∞)×[0,∞)
( A 1 =0, B 1 0, C 1 0) or ( A 2 =0, B 2 0, C 2 0) [0,∞)×[0,∞)(0,0)