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### hw6

Course: M 4428, Fall 2009
School: Minnesota
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Word Count: 147

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4428 Math Homework 6 due March 26, 2007 This is a study of the competing species dynamics described in Section 4.11. Consider the four possible situations in Figure 4.10. (i) Of the 4 possible models, explain the pros and cons of each model briefly. Which model is most realistic in its behavior? Why? (ii) The model described in Figure 4.10(c) describes a situation where the two species live happily without...

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4428 Math Homework 6 due March 26, 2007 This is a study of the competing species dynamics described in Section 4.11. Consider the four possible situations in Figure 4.10. (i) Of the 4 possible models, explain the pros and cons of each model briefly. Which model is most realistic in its behavior? Why? (ii) The model described in Figure 4.10(c) describes a situation where the two species live happily without extinguishing the other. Using the method in Section 2.2, determine this if equilibrium is stable. (iii) Using the method in Section 2.2 to show that the equilibrium point (0, a2 /c2 ) in Figure 4.10(d) is stable. (iv) Use Matlab (see my run_competing.m and competing.m codes) to obtain the evolution of population for the situations depicted in F...

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