6. Express solutions of the following in terms of the special functions defined in lectures [do n...
6. Express solutions of the following in terms of the special functions defined in lectures [do not derive these solutions): (a) (1-x2)y"-2xy' + n (n + 1 )y = 0. conditions g(-1)-(1)", (1)1 -1-x < 1, write down the solution that satisfies the boundary )sine de sin de+n(n+1)7-0,0T, write down the general solution and then the solution and 27-periodic with respect to θ. that is bounded for YAc 6. Express solutions of the following in terms of the special functions...
+ (3) ar2 2. Recall from lectures that the governing PDE for vibrations of a circular drum lid is 1 au 1 ay c? + 012 72 302 for r € (0,R), 0€ (-2,7), and t > 0, and the boundary condition is (R, 6,t) = 0 for t>0 and -150<7. rar (4) You will search for a solution of the form v(r,0,t) = G(r) sin(30) cos(w t), (5) for a function G that satisfies the ODE m2 G" +rG'...
5. Consider Legendre equation for a function y(x) defined in the interval -1. Changing the variable y(cos θ) x cos θ in equation (1) derive the trigonometric form of Legendre equation for a function T (0) where 0 θ π: sin θ Then the general solution to (3) is T (0) y(cos θ) AP, (cos0) + BQ, (cos0). 5. Consider Legendre equation for a function y(x) defined in the interval -1. Changing the variable y(cos θ) x cos θ in...
7. Consider the boundary value problem for the Laplace equation on the strip u(0, y) u(n,y)=0, = a. Explain why it makes sense to look for a solution of the form b. Find all solutions of the form u(x,y) = Σ Yn (y) sin nx satisfying c. Among the solutions you found in part (b) find the unique solution u (x, y) = Σ Y, (y) sin na. the Laplace equation and the boundary conditions. (i.e. find Yn (y).) that...
question 1,2,3 please Special Functions- IVP and BVP Quiz 3.12 Solve the following initial value problems. Ans: y- cost+ H(-3)-cos(t 2r) H(t3) y(0)=0,s(0)=1 where 2. v', +y=g(t), { 1, 0 t<π/2 g(t) = Ans:y=1-cos t + sin t + (sint-1)H(t-π/2) x(0) = 0,d(0) = 1 where 3、z"(t) + 162(t) = g(t), cos 4t, 0 12π. t<π 5 Special Functions- IVP and BVP Quiz 3.12 Solve the following initial value problems. Ans: y- cost+ H(-3)-cos(t 2r) H(t3) y(0)=0,s(0)=1 where 2. v',...
(15 pts) Bessel functions and the vibration of a circular drum In polar coordinates, the Laplacian is just like the Laplacian for the cylinder, but with the removed part เอ The structure of the Laplacian is what we call separable because the r and 0 terms are separate this allows us to solve certain physics problems on the disc by searching for solutions of the form f(r,0)-ar)b() The vibration of a circular drum head is described by 02t where u...
7. Consider the boundary value problem for the Laplace equation on the strip u (0, y) u (т, y) = 0, = a. Explain why it makes sense to look for a solution of the form b. Find all solutions of the form u(x, y) -ZYn (v)sinnx satisfying c. Among the solutions you found in part (b) find the unique solution u (x, y)-Yn (y) sin n. the Laplace equation and the boundary conditions. (i.e. find Yn. (3).) that satisfies...
4. In lectures, we defined closed subsets of Rn. The definition can be generalized in the following way. Let X be a subset of R". We say that a subset S C X is closed in X if all limit points of S that are in X are also in S. [Any closed subset of Rn is "closed in Rn*) State whether each of the following sets S is closed in X. For cases where X - Rn (including the...
Consider the Kronig-Penney model discussed in the lectures, where the periodic potential corresponds to an array of delta functions: However, unlike the usual model, we will take α < 0, so that we have potential wells rather than barriers. In the following, we aim to solve the time-independent Schrödinger equation 2m r (a) First consider the case where the energy E 0. Write down the general solution for ψ(z) within the interval 0 < r < a, and use the...
# 4: For smooth complex valued functions f(x), g(z) defined for 0 < x inner product<f(x),g(x) > by 2π define the Hermitian Introduce the operator D(f() a)Show that <D(f(x),9()), D(g(x)) > if f b) For n and integer show that einz for 0-x-2n satisfi c) Show that for mメn both integers then < einz, enny-0, 0,警) (0)- ic boundary conditions. Also onormal and < einz, einz >-2T. θ, Call these last periodic boundary conditions for f(x), g(s), show that D(einz)...