- #1
Rubik
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Homework Statement
Find all critical points and derive the linearised system about each critical point
[itex]\dot{y}[/itex] = [3y1 + y1y2; y1 + y2 - y22]
Homework Equations
The Attempt at a Solution
Setting
0 = 3y1 + y1y2 so y2 = -3
0 = y1 + y2 - y22 so y1 = 12
= [0, 1; 12, -3]
so p = -3 (<0)
q = -12 (<0)
[itex]\Delta[/itex] = 57 (>0)
Is this right that my only critical point is (12,-3) and is that how I determine the nature of the critical point and whether my critical point is stable or unstable with my values for p, q and [itex]\Delta[/itex]?