Please solve the following problem, solve all parts
Homework Answers
For c) part we use the linearised matrix,i.e jacobian matrix to
understand the kind of equilibrium point for sketch. Also sketch is
only meaningful for first quadrant as x and y are
populations
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3. Consider the following system of autonomous differential equations for the populations of two ...
1. The populations of two competing species x(t) and y(t) are governed by the non-linear system...
1. The populations of two competing species x(t) and y(t) are governed by the non-linear system of differential equations dx dt 10x – x2 – 2xy, dy dt 5Y – 3y2 + xy. (a) Determine all of the critical points for the population model. (b) Determine the linearised system for each critical point in part (a) and discuss whether it can be used to approximate the behaviour of the non-linear system. (c) For the critical point at the origin: (i)...
Problem 1. For each of the following systems of autonomous differential equations, sketch the nul...
Problem 1. For each of the following systems of autonomous differential equations, sketch the nullclines and find the equilibria da dy =y-x2 + 3x-2, a+ b 1000 ,2 1-7 a+b 1100
Problem 1. For each of the following systems of autonomous differential equations, sketch the nullclines and find the equilibria da dy =y-x2 + 3x-2, a+ b 1000 ,2 1-7 a+b 1100
3. Consider the following stiff system of autonomous ordinary differential equations du f(u, u) =-3u +3,...
3. Consider the following stiff system of autonomous ordinary differential equations du f(u, u) =-3u +3, u(0)2 = ' dt de g(u, v) -2000u - 1000, v(0)-3 Note that 1 u<2 and -4 <v < 3 for all t. (a) Find the Jacobian matrix for the system of equa tions (b) Find the eigenvalues of the Jacobian matrix. (c) In the figure the shaded region shows the region of absolute stability, in the complex h plane, for third order explicit...
Solve the system of differential equations. Include a phase plane and discuss the stability of the equilibrium. (dx)/(dt) = 2x+2y, (dy)/(dt)=15x-5y d.r dt 152-by dt d.r dt 152-by dt
Solve the system of differential equations. Include a phase plane and discuss the stability of the equilibrium. (dx)/(dt) = 2x+2y, (dy)/(dt)=15x-5y d.r dt 152-by dt d.r dt 152-by dt
Bifurcation dy Consider the autonomous differential equation =y? - 2y + 8. We will begin by...
Bifurcation dy Consider the autonomous differential equation =y? - 2y + 8. We will begin by examining dt the equilibrium solutions of the equation for various values of the parameter 8 1. Find the equilibrium solutions of the equation for 8 = -4,-2, 0, 2, 4 and make a sketch of the phase line for each value. Determine the stability of each equilibria. 2. Use a computer or some other means to sketch some solution curves for each value of...
Problem 3. Consider the following continuous differential equation dx dt = αx − 2xy dy dt...
Problem 3. Consider the following continuous differential equation dx dt = αx − 2xy dy dt = 3xy − y 3a (5 pts): Find the steady states of the system. 3b (15 pts): Linearize the model about each of the fixed points and determine the type of stability. 3b (15 pts): Draw the phase portrait for this system, including nullclines, flow trajectories, and all fixed points. Problem 2 (25 pts): Two-dimensional linear ODEs For the following linear systems, identify the...
This is a differential equations problem 2. Given the system of differential equations 0.2 0.005ry, --0.5y+0.01ry, w...
This is a differential equations problem
2. Given the system of differential equations 0.2 0.005ry, --0.5y+0.01ry, which models the rates of changes of two interacting species populations, describe the type of z- and y-populations involved (exponential or logistic) and the nature of their interaction (competition, cooperation, or predation). Then find and characterize the system's critical points (type and stability). Determine what nonzero r- and y-populations can coexist. Ther construct a phase plane portrait that enables you to describe the long...
Q5. (15pt] Consider the following system of differential equations. it t = = Ctyt - 1,...
Q5. (15pt] Consider the following system of differential equations. it t = = Ctyt - 1, c + gì - 2. (a) (3pt) Find the equilibria of this system. (b) (5pt] Draw the phase diagram of the system and analyze the stability of the equilibria. (c) (7pt] Linearize the system around (1,1) by using Taylor approximation. Find the general so- lution of this linear system of differential equations and analyze the stability of the equilibria.
Consider the autonomous differential equation dy dt = = y(k - y), t> 0, k >...
Consider the autonomous differential equation dy dt = = y(k - y), t> 0, k > 0 (i) list the critical points (ii) sketch the phase line and classify the critical points according to their stability (iii) Determine where y is concave up and concave down (iv) sketch several solution curves in the ty-plane.
dy 3. (5 points): Consider the autonomous differential equation dt is given below. Draw the phase...
dy 3. (5 points): Consider the autonomous differential equation dt is given below. Draw the phase line and classify the equilibria. f(y) where the graph of f(y) Y 1 -0.5 0.5 1 y
1. The populations of two competing species x(t) and y(t) are governed by the non-linear system of differential equations dx dt 10x – x2 – 2xy, dy dt 5Y – 3y2 + xy. (a) Determine all of the critical points for the population model. (b) Determine the linearised system for each critical point in part (a) and discuss whether it can be used to approximate the behaviour of the non-linear system. (c) For the critical point at the origin: (i)...
Problem 1. For each of the following systems of autonomous differential equations, sketch the nullclines and find the equilibria da dy =y-x2 + 3x-2, a+ b 1000 ,2 1-7 a+b 1100
Problem 1. For each of the following systems of autonomous differential equations, sketch the nullclines and find the equilibria da dy =y-x2 + 3x-2, a+ b 1000 ,2 1-7 a+b 1100
3. Consider the following stiff system of autonomous ordinary differential equations du f(u, u) =-3u +3, u(0)2 = ' dt de g(u, v) -2000u - 1000, v(0)-3 Note that 1 u<2 and -4 <v < 3 for all t. (a) Find the Jacobian matrix for the system of equa tions (b) Find the eigenvalues of the Jacobian matrix. (c) In the figure the shaded region shows the region of absolute stability, in the complex h plane, for third order explicit...
Bifurcation dy Consider the autonomous differential equation =y? - 2y + 8. We will begin by examining dt the equilibrium solutions of the equation for various values of the parameter 8 1. Find the equilibrium solutions of the equation for 8 = -4,-2, 0, 2, 4 and make a sketch of the phase line for each value. Determine the stability of each equilibria. 2. Use a computer or some other means to sketch some solution curves for each value of...
This is a differential equations problem
2. Given the system of differential equations 0.2 0.005ry, --0.5y+0.01ry, which models the rates of changes of two interacting species populations, describe the type of z- and y-populations involved (exponential or logistic) and the nature of their interaction (competition, cooperation, or predation). Then find and characterize the system's critical points (type and stability). Determine what nonzero r- and y-populations can coexist. Ther construct a phase plane portrait that enables you to describe the long...
Q5. (15pt] Consider the following system of differential equations. it t = = Ctyt - 1, c + gì - 2. (a) (3pt) Find the equilibria of this system. (b) (5pt] Draw the phase diagram of the system and analyze the stability of the equilibria. (c) (7pt] Linearize the system around (1,1) by using Taylor approximation. Find the general so- lution of this linear system of differential equations and analyze the stability of the equilibria.
Consider the autonomous differential equation dy dt = = y(k - y), t> 0, k > 0 (i) list the critical points (ii) sketch the phase line and classify the critical points according to their stability (iii) Determine where y is concave up and concave down (iv) sketch several solution curves in the ty-plane.
dy 3. (5 points): Consider the autonomous differential equation dt is given below. Draw the phase line and classify the equilibria. f(y) where the graph of f(y) Y 1 -0.5 0.5 1 y
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