5. Let y E C2([0, T]; R), T > 0 satisfy y"(t) = 피t, y(0) = y'(0) = 0 e R. Use Picard-Lindelöf 1+...
4. Let x E C1 (0,T]; R), T > 0 satisfy _ cos(t)x(t)H(t) + sin(t)2(t) = 0 for all t E (0,T). (a) Show that this defines a FODE for at least one T>0. 1 mark 2 mark (c) Find the potential and conclude (briefly) what is the solution space for the FODE for (b) Transform (possibly inverting) the DE into an exact DE. T. 2 mark 4. Let x E C1 (0,T]; R), T > 0 satisfy _ cos(t)x(t)H(t)...
1. Carefully write the following: (a) Suppose A is a 3 × 3 matrix that you can diagonalised, explain how you would diagonalise A. (1 mark) (b) Give an example of two unbounded functions f : (−1, 1) → R and g : (−1, 1) → R such that f + g is bounded and L-Lipschitz for every L > 0. (1 mark) (c) The definition of sup(A) and the definition of f : (0, T) × Ω → R...
1. Carefully write the following: (a) Suppose A is a 3 × 3 matrix that you can diagonalised, explain how you would diagonalise A. (1 mark) (b) Give an example of two unbounded functions f : (−1, 1) → R and g : (−1, 1) → R such that f + g is bounded and L-Lipschitz for every L > 0. (1 mark) (c) The definition of sup(A) and the definition of f : (0, T) × Ω → R...
For each initial value problem, does Picards's theorem apply? If so, determine if it guarantees that a solutio exists and is unique. Theorem (Picard). Consider the initial value problem dy = f(t,y), dt (IVP) y(to) = Yo- (a) Existence: If f(t,y) is continuous in an open rectangle R = {(t,y) |a<t < b, c < y < d} and (to, Yo) belongs in R, then there exist h > 0 and a solution y = y(t) of (IVP) defined in...
(b) Let f 0, 1-R be a C2 function and let g, h: [0, 00)-R be C1. Consider the initial-boundary value problem kwr w(r, 0) f(a) w(0, t) g(t) w(1, t) h(t) for a function w: [0,1 x [0, 0)- R such that w, wn, and wa exist and are continuous. Show that the solution to this problem is unique, that is, if w1 and w2 [0, 1] x [0, 00)- R both satisfy these conditions, then w1 = w2....
True or False Ivp questions a) An IVP of the for y' + p(t)y = g(t), y(0) = yo, with p and g continuous functions defined for all tER, always has a unique differentiable solution y(t) defined for all t E R. b) To find the solution of y' + p(t)y = gi(t) + 92(t), y(0) = yo it suffices to solve y' + p(t)y = gi(t), y(0) = 0 and y' + p(t)y = 92(t), y(0) = 1 and...
Please show all steps to solution. 7. Use a suitable Fourier Transform to find the solution of the IVP 2t-r-1 ,2-1 t 〉 0, , u(x, t), uz (x, t) 0asx→00, t〉0, → 7. Use a suitable Fourier Transform to find the solution of the IVP 2t-r-1 ,2-1 t 〉 0, , u(x, t), uz (x, t) 0asx→00, t〉0, →
x(t) and y(t) satisfy the following system of differential equations: de todo-y=0, de+ 5y =e-6t, sc(0)=y(0)=0. Find the Laplace transform of y(t) Your answer should be expressed as a function of s using the correct syntax.
5. Consider the following second order IVP y2y te - t, 0 t1 y(0)/(0) 0 = ( y(t). Transform the above IVP to system of first order (a) Let u(t)y(t) and u2(t) IVP of u and u2. (b) Find y(t) by solving the system with h 0.1 (c) Compare the results to the actual solution y(t) = %et - te 2e t - 2. 5. Consider the following second order IVP y2y te - t, 0 t1 y(0)/(0) 0 =...
(6). The quantities x(t) and y(t) satisfy the simultaneous equations dt dt dx dt where x(0)-y(0)-ay (0)-0, and ax (0)-λ. Here n, μ, and λ are all positive real numbers. This problem involves Laplace transforms, has three parts, and is continued on the next page. You must use Laplace transforms where instructed to receive credit for your solution (a). Define the Laplace Transforms X(s) -|e"x(t)dt and Y(s) -e-"y(t)dt Laplace Transform the differential equations for x(t) and y(t) above, and incorporate...