Question

LAB 3.1 Bifurcations in Linear Systems
In Chapter 3, we have studied techniques for solving linear systems. Given the coefficient matrix for the system, we can use these techniquesto classify the system, describe the qualitative behavior of solutions, and give a formula for the general solution. In this lab we consider a two-parameter family of linear systems. The goal is to better understand how different linear systems are related to each other, or in other words, what bifurcations occur in parameterized families of linear systems. Consider the linear system
dx dt =ax+by dy dt =−x − y, where a and b are parameters that can take on any real value. In your report, address the following items: 1. For each value of a and b, classify the linear system as source, sink, center, spiral sink, and so forth. Draw a picture of the ab-plane and indicate the values of a and b for which the system is of each type (that is, shade the values of a and b for which the system is a sink red, for which it is a source blue, and so forth). Be sure to describe all of the computations involved in creating this picture.

Answer 1