Consider the nonlinear system * = x y x(x +5), =x+yg ( +). (1) You are...
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Consider the nonlinear system * = x −y− x(x +5), ỷ=x+y−g (ể +ỷ). (1) You are given that (x, y) = (0,0) is the only fixed point of system (1). - a) Classify the stability of the fixed point at the origin. = b) We introduce the polar coordinates r >0 and so that x = r cos 0 and y =rsin. Using that r² x² + y², find an evolution equation for r in terms of r and only. You do not need to derive an equation for 8. c) Find a trapping region, and use the Poincaré-Bendixson Theorem to deduce that the system (1) has an attracting limit cycle. Consider the nonlinear system * = x −y− x(x +5), ỷ=x+y−g (ể +ỷ). (1) You are given that (x, y) = (0,0) is the only fixed point of system (1). - a) Classify the stability of the fixed point at the origin. = b) We introduce the polar coordinates r >0 and so that x = r cos 0 and y =rsin. Using that r² x² + y², find an evolution equation for r in terms of r and only. You do not need to derive an equation for 8. c) Find a trapping region, and use the Poincaré-Bendixson Theorem to deduce that the system (1) has an attracting limit cycle.
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a To analyze the stability of the fixed point at the origin we can linearize the system around this ... View the full answer
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