In Problems 15 and 16 , determine whether the given system has a nonconstant periodic solution in the entire plane.
[Hint: Use the Lyapunov function
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Fundamentals of Differential Equations and Boundary Value Problems
- This paragraph from the text defines the term "controllable". The concept of rank plays an important role in the design of engineering control systems, such as the space shuttle system mentioned in this chapter's introductory example. A state-space model of a control system includes a difference equation of the form xk+1 = Axk+ Buk for k = = 0, 1,... (1) where A is n xn, B is n xm, {x} is a sequence of "state vectors" in R" that describe the state of the system at discrete times, and {u} is a control, or input, sequence. The pair (A, B) is said to be controllable if rank B AB A² B ... A"-¹B] = n (2) The matrix that appears in (2) is called the controllability matrix for the system. If (A, B) is controllable, then the system can be controlled, or driven from the state 0 to any specified state v (in R") in at most n steps, simply by choosing an appropriate control sequence in R" Determine of the following matrix pair is controllable: [0.9 1.0 0 A = 0 -0.9 0 B = , 0 0 0.5]arrow_forwardLet (x, y,) be the solution of the following equations In 2 (2x) = (3y)m3 3Inx: = 2Iny Then isarrow_forward3. The steady-state distribution of temperature on a heated plate can be modeled by the Laplace equation, 25°C 25°C If the plate is represented by a series of nodes (Fig.1), centered T12 100°C O°C finite-divided differences can substituted for the second T 100°C 0°C derivatives, which results in a system of linear algebraic equations as follows: 75°C 75°C Use the Gauss-Seidel method to solve for the temperatures of the (175 |125 75 25 -1 -1 4 -1 4 nodes in Fig.1. Perform the 0 - 1||T, 2 4 -1|T21 - computation until ɛ, is less than Es = 0.5%. -1 -1 4 [T2 MATH206 week (5) 45 Spring 2021, 20/4/2021arrow_forward
- Problem 1C. Solve the system of linear equations using Crout's LU Decomposition. 11 [X1 X2 X3 -5 -10 -2 2 -11 -1 7 8. -11 8. 4 4 -1 6. 9. 4 -1 [X4] 15arrow_forward1.arrow_forwardConsider the problem of maximizing the algebraic expression q given by q = V6 – (x+2)² – y? subject to the constraint x'-y?-4y = 8, using the Lagrange multiplier technique. Solving the system corresponding to this problem yields the following relationship between the variables: y + 2 y + 1 A) -x – 2 B) y = x +1 x + 2 C) y = x +1 y – 2 D) x = y +1arrow_forward
- 13.In the Lotka–Volterra equations, the interaction between the two species is modeled by terms proportional to the product xy of the respective populations. If the prey population is much larger than the predator population, this may overstate the interaction; for example, a predator may hunt only when it is hungry and ignore the prey at other times. In this problem we consider an alternative model proposed by Rosenzweig and MacArthur.10 a.Consider the system x′=x(1−x5−2yx+6),y′=y(−14+xx+6).x′=x1−x5−2yx+6,y′=y−14+xx+6. Find all of the critical points of this system. b.Determine the type and stability characteristics of each critical point.arrow_forwardConsider the following SEL. Calculate the solution for the system using the Gauss-Jacob iterative method (Consider k=3 and initial values equal to zero)arrow_forward3. The steady-state distribution of temperature on a heated plate can be modeled by the Laplace equation, 25°C 25°C If the plate is represented by a series of nodes (Fig.1), centered finite-divided T12 100°C differences can substituted for the second T31 100°C derivatives, which results in a system of linear algebraic equations as follows: 75°C 76°C Use the Gauss-Seidel method to solve for the temperatures of the in Fig.1. 0 |T, -1T2 -1T, 4 (175) |125 75 25 -1 -1 4 1 4 - 1 4 -1 -1 11 nodes Perform the 21 computation until ɛ, is less than &s = 0.5%. T, 22 %3Darrow_forward
- This is the third part of a four-part problem. If the given solutions ÿ₁ (t) = 2e³t 3e³t+15e7 +60-1], 5₂(t) = yı(t) Y₂(t) form a fundamental set (i.e., linearly independent set) of solutions for the system 9 -4 ÿ' = [₁ [15 -7 - [4e³t+2e= 3t +5e-t ÿ, 6e3t state the general solution of the linear homogeneous system, and if they do not, enter NONE in all of the answer blanks. Express the general solution as the product ÿ(t) = Y(t)ẻ, where (t) is a square matrix whose columns are the solutions forming the fundamental set and è is a column vector of arbitrary constants. 1 [8]] = C1 C2arrow_forward1.54 PM Tue Mar 2 AA A savvasrealiz Student Technology Portal :: New Lenox School Dis... Savvas Reali ( Exit 6-1 Homework K 6.1.1 Determine which of the following represents a system of linear equations. z= 6+x II 3.1x = 3.81 - 4.82z X= 6 II 2xz + 8 IV z= 2.4x z= 5x + 2 Which of the following represents a system of linear equations? Select all that apply. A. I В. I C. III D. IV Click to select your answer(s) and then click Check Answer.arrow_forward3. Let c e R be a constant. Consider the following system of linear equations over R: = 0 3x1 + 4t1 + (c— 2)22 + (2с— 3)3 CI2 + 13 (*). CI2 + X3 = 0 (2)( Determine all values of c so that the system (*) has a unique solution. (b)( If c = 1, find the dimension of the solution set of the system (*).arrow_forward
- Linear Algebra: A Modern IntroductionAlgebraISBN:9781285463247Author:David PoolePublisher:Cengage Learning