DIFFERENTIAL EQUATIONS-NEXTGEN WILEYPLUS
DIFFERENTIAL EQUATIONS-NEXTGEN WILEYPLUS
3rd Edition
ISBN: 9781119764564
Author: BRANNAN
Publisher: WILEY
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Chapter 6.5, Problem 24P

The Method of Successive Approximations. Consdier the initial value problem

x'=Ax, x ( 0 ) =x 0 ,         (i)

where A is a constant matrix and x 0 is prescribed vector.

(a) Assuming that a solution x= ϕ ( t ) exists, show that it must satisfy the integra; equation

ϕ ( t ) = x 0 + 0 t A ϕ ( s ) d s .         (ii)

(b) Start with the initial approximation ϕ ( 0 ) = x 0 . Substitute the expression for ϕ ( t ) in the right hand side of Eq.(ii) and obtain a new approximation ϕ ( 1 ) ( t ) . Show that ϕ ( 1 ) ( t ) = ( I n +A t ) x 0 .         (iii)

(c) Repeat the process and thereby obtain a sequence of approximations ϕ ( 0 ) , ϕ ( 1 ) , ϕ ( 2 ) , ...... , ϕ ( n ) , .. Use an inductive argument to show that

ϕ ( n ) ( t ) = ( I n +A t + A 2 t 2 2 ! + ...... + A n t n n ! ) x 0 .         (iv)

(d) Let n and show that the solution of the initial value problem (i) is

ϕ ( t ) = e At x 0         (v)

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Chapter 6 Solutions

DIFFERENTIAL EQUATIONS-NEXTGEN WILEYPLUS

Ch. 6.1 - Determine the matrix K and input g(t) if the (23)...Ch. 6.1 - Find a system of first order linear differential...Ch. 6.1 - An initial amount of tracer (such as a dye or a...Ch. 6.1 - Using matrix notation, show that the system of...Ch. 6.1 - Consider the plant equation (26) for the control...Ch. 6.2 - In each of problems 1 through 6, determine...Ch. 6.2 - In each of problems 1 through 6, determine...Ch. 6.2 - In each of problems 1 through 6, determine...Ch. 6.2 - In each of problems 1 through 6, determine...Ch. 6.2 - In each of problems through ,determine intervals...Ch. 6.2 - In each of problems 1 through 6, determine...Ch. 6.2 - Consider the vectors x1(t)=(et2etet),...Ch. 6.2 - Determine whether , , form a fundamental set...Ch. 6.2 - Determine whether x1(t)=et(101), x2(t)=et(141),...Ch. 6.2 - In section it was shown that if and are...Ch. 6.2 - In each of problems 11 through 16, verify that the...Ch. 6.2 - In each of problems 11 through 16, verify that the...Ch. 6.2 - In each of problems 11 through 16, verify that the...Ch. 6.2 - In each of problems through , verify that the...Ch. 6.2 - In each of problems through , verify that the...Ch. 6.2 - In each of problems through , verify that the...Ch. 6.2 - Verify that the differential operator defined by...Ch. 6.3 - In each of problems 1 through 8, find the general...Ch. 6.3 - In each of problems through ,find the general...Ch. 6.3 - In each of problems through ,find the general...Ch. 6.3 - In each of problems through ,find the general...Ch. 6.3 - In each of problems 1 through 8, find the general...Ch. 6.3 - In each of problems 1 through 8, find the general...Ch. 6.3 - In each of problems through ,find the general...Ch. 6.3 - In each of problems 1 through 8, find the general...Ch. 6.3 - In each of problems through , solve the given...Ch. 6.3 - In each of problems 9 through 12, solve the given...Ch. 6.3 - In each of problems 9 through 12, solve the given...Ch. 6.3 - In each of problems 9 through 12, solve the given...Ch. 6.3 - Using the rate equations (20) through (22),...Ch. 6.3 - Diffusion on a One-dimensional Lattice with an...Ch. 6.3 - Find constant vectors and such that the...Ch. 6.3 - Find constant vectors and such that the...Ch. 6.3 - A radioactive substance having decay rate ...Ch. 6.3 - For each of the matrices in Problems 18 through...Ch. 6.3 - For each of the matrices in Problems through ,...Ch. 6.3 - For each of the matrices in Problems through ,...Ch. 6.3 - For each of the matrices in Problems through ,...Ch. 6.3 - For each of the matrices in Problems 18 through...Ch. 6.3 - For each of the matrices in Problems through ,...Ch. 6.4 - In each of problems through , express the...Ch. 6.4 - In each of problems 1 through 8, express the...Ch. 6.4 - In each of problems through , express the...Ch. 6.4 - In each of problems through , express the...Ch. 6.4 - In each of problems 1 through 8, express the...Ch. 6.4 - In each of problems 1 through 8, express the...Ch. 6.4 - In each of problems through , express the...Ch. 6.4 - In each of problems through , express the...Ch. 6.4 - (a) Find constant vectors and such that the...Ch. 6.4 - (a) Find constant vectors and such that the...Ch. 6.4 - In this problem, we indicate how to show that...Ch. 6.4 - Consider the two-mass, three-spring system of...Ch. 6.4 - Consider the two-mass, three-spring system whose...Ch. 6.4 - Consider the two-mass, three-spring system whose...Ch. 6.4 - For each of the matrices in problem 15 through 18...Ch. 6.4 - For each of the matrices in problem through use...Ch. 6.4 - For each of the matrices in problem 15 through 18...Ch. 6.4 - For each of the matrices in problem 15 through 18...Ch. 6.5 - In each of problem through , find a fundamental...Ch. 6.5 - In each of problem 1 through 14, find a...Ch. 6.5 - In each of problem through , find a fundamental...Ch. 6.5 - In each of problem through , find a fundamental...Ch. 6.5 - In each of problem 1 through 14, find a...Ch. 6.5 - In each of problem 1 through 14, find a...Ch. 6.5 - In each of problem 1 through 14, find a...Ch. 6.5 - In each of problem 1 through 14, find a...Ch. 6.5 - In each of problem 1 through 14, find a...Ch. 6.5 - In each of problem 1 through 14, find a...Ch. 6.5 - In each of problem 1 through 14, find a...Ch. 6.5 - In each of problem through , find a fundamental...Ch. 6.5 - In each of problem 1 through 14, find a...Ch. 6.5 - In each of problem 1 through 14, find a...Ch. 6.5 - Solve the initial value problem...Ch. 6.5 - Solve the initial value problem...Ch. 6.5 - In each of Problems 17 through 20, use the method...Ch. 6.5 - In each of Problems through , use the method of...Ch. 6.5 - In each of Problems 17 through 20, use the method...Ch. 6.5 - In each of Problems 17 through 20, use the method...Ch. 6.5 - Consider an oscillator satisfying the initial...Ch. 6.5 - The matrix of coefficients for the system of...Ch. 6.5 - Assume that the real nn matrix A has n linearly...Ch. 6.5 - The Method of Successive Approximations. Consdier...Ch. 6.6 - Assuming that is a fundamental matrix for , show...Ch. 6.6 - In each of Problems 2 through 9, find the general...Ch. 6.6 - In each of Problems 2 through 9, find the general...Ch. 6.6 - In each of Problems 2 through 9, find the general...Ch. 6.6 - In each of Problems 2 through 9, find the general...Ch. 6.6 - In each of Problems 2 through 9, find the general...Ch. 6.6 - In each of Problems 2 through 9, find the general...Ch. 6.6 - In each of Problems 2 through 9, find the general...Ch. 6.6 - In each of Problems 2 through 9, find the general...Ch. 6.6 - Diffusion of particles on a lattice with...Ch. 6.6 - Find numerical approximations to the initial value...Ch. 6.6 - The equations presented in Section 6.1 for...Ch. 6.6 - When viscous damping forces are included and the...Ch. 6.6 - Undetermined Coefficients. For each of the...Ch. 6.6 - Undetermined Coefficients. For each of the...Ch. 6.6 - Undetermined Coefficients. For each of the...Ch. 6.7 - In each of Problems 1 through 8, find a...Ch. 6.7 - In each of Problems 1 through 8, find a...Ch. 6.7 - In each of Problems 1 through 8, find a...Ch. 6.7 - In each of Problems 1 through 8, find a...Ch. 6.7 - In each of Problems 1 through 8, find a...Ch. 6.7 - In each of Problems 1 through 8, find a...Ch. 6.7 - In each of Problems 1 through 8, find a...Ch. 6.7 - In each of Problems 1 through 8, find a...Ch. 6.7 - In each of Problems 9 and 10, find the solution of...Ch. 6.7 - In each of Problems 9 and 10, find the solution of...Ch. 6.7 - In each of Problems 11and12, find the solution of...Ch. 6.7 - In each of Problems 11 and 12, find the solution...Ch. 6.P1 - The Undamped Building. (a) Show that...Ch. 6.P1 - The Building with Damping Devices. In addition to...Ch. 6.P1 - A majority of the buildings that collapsed during...Ch. 6.P2 - Derive the system of equations (1) by applying...Ch. 6.P2 - Find the eigenvalues and eigenvectors of the...Ch. 6.P2 - From the normal mode representation of the...Ch. 6.P2 - Repeat Problem 2 for a system of four masses...Ch. 6.P2 - Find the rank of the controllability matrix for...Ch. 6.P2 - Find the rank of the controllability matrix for...Ch. 6.P2 - Prove the Cayley–Hamilton theorem for the special...Ch. 6.P2 - A symmetric matrix is said to be negative definite...Ch. 6.P2 - For the three-mass system, find a scalar control...

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