Bessel equation Definition and 21 Threads

Hey all, I wanted to know if anyone knew somewhere I could find the asymptotic behavior for small x (i.e x approaching 0) limit of the modified Bessel equations with complex order. The wikipedia page for Bessel functions...

Hello, For my homework I am supposed to get- into the form of a Bessel equation using variable substitution. I am just not sure what substitution to use. Thanks in advance.

Hello, i am trying to solve this equation for x besselj(0,0.5*x)*bessely(0,4.5*x)-besselj(0,4.5*x)*bessely(0,0.5*x) ==0; I tried vpasolve, but it gave me answer x=0 only. fzero function didnt work, too. What function can solve this equation? Thanks

Homework Statement Homework Equations The Attempt at a Solution Because we are only looking at a cross section, I tried to reduce 5.3 down to just being a function of R and Theta. However I reasoned that there should be, based on this problem, no dependence on Theta either, so I figured I...

Homework Statement Given the bessel equation $$x^2\frac{d^2y}{dx^2} + x\frac{dy}{dx} -(1-x)y=0$$ show that when changing the variable to ##u = 2\sqrt{x}## the equation becomes $$u^2\frac{d^2y}{du^2}+u\frac{dy}{du}+(u^2-4)y = 0$$ Homework Equations The Attempt at a Solution ##u=2\sqrt{x}##...

Homework Statement I am trying to find an equation for a free hanging chain of mass m and length L. The chain is hanging vertically downwards where x is measured vertically upwards from the free end of the chain and y is measured horizontally. Homework Equations [/B] I derived this...

How Naumann arrived to the second kind of Bessel ? I want proof , Please .. http://C:\Users\User\Downloads

Hello .. I have research on derivative Bessel type II and type III function (function Henkel), I can not get it .. Please help me.:cry:

Homework Statement I need to solve a problem like Jackson 3.18. I need to find potential due to the same configuration but the position of two plates is opposite i.e. Plate at Z=0 contains disc with potential V and plate at Z=0 is grounded. Homework EquationsThe Attempt at a Solution I think...

I'm trying to show that a function defined with the following recurence relations $$\frac{dZ_m(x)}{dx}=\frac{1}{2}(Z_{m-1}-Z_{m+1})$$ and $$\frac{2m}{x}Z_m=Z_{m+1}+Z_{m-1}$$ satisfies the Bessel differential equation $$\frac{d^2}{dx^2}Z_m+\frac{1}{x}\frac{d}{dx}Z_m+(1-\frac{m^2}{x^2})Z_m=0$$...

We first express Bessel's Equation in Sturm-Liouville form through a substitution: Next, we consider a series solution and replace v by m where m is an integer. We obtain a recurrence relation: Then, since all these terms must be = 0, Consider m = 0 First term vanishes and second term = a1x...

[SIZE="4"][FONT="Book Antiqua"] Show that the Legendre equation as well as the Bessel equation for n=integer are Sturm Liouville equations and thus their solutions are orthogonal. How I can proove that ..? :(

can we use only frobenius method to solve bessel equation?

Hi there. I'm working with the Bessel equation, and I have this problem. It says: a) Given the equation \frac{d^2y}{dt^2}+\frac{1}{t}\frac{dy}{dt}+4t^2y(t)=0 Use the substitution x=t^2 to find the general solution b) Find the particular solution that verifies y(0)=5 c) Does any solution...

Not sure if this is the right place. Mathematica has a function BesselK[0,x] that returns the value of the modified Bessel function K_0 at x. Is there public documentation of how this algorithm works? If not, is there documentation regarding any algorithm of K_0? I am hoping it doesn't...

problem in Bessel equation help ... Homework Statement using the formula d\dx (x^n Jn(x))=x^n Jn-1(x) & 2n\x Jn(x)=Jn+1(x)+Jn-1(x) Homework Equations prove that integral from 0 to 1 (x(1-x^2)Jdot(x) dx = 4 J1(1) - 2 Jdot (1) The Attempt at a Solution it's difficult one i can not...

Hi all can anyone help me to reduce following diff.Equ. to bessel eq. 4x^3*y''-y=0 thanks in advance . I am also still trying to show that it can be converted to bessel function.

I remember some of my linear algebra from my studies but can't wrap my head around this one. Homework Statement Say my solution to a DE is "f(x)" (happens to be bessel's equation), and it contains a constant variable "d" in the argument of the bessel's functions (i.,e. J(d*x) and Y(d*x)). So...

I need to convertx^{2}y''+2xy'+[kx^{2}-n(n+1)]y=0 using y=x^{-\frac{1}{2}}w to a normal Modified Bessel Equation and I cannot get to that. I check many times and I must be having a blind spot! This is my work: y=x^{-\frac{1}{2}} w \Rightarrow...

What am I missing when I'm unsuccessful in showing by direct substitution into the spherical Bessel equation r^2 \frac{d^2R}{dr^2} + 2r \frac{dR}{dr} + [k^2 r^2 - n(n + 1)] R = 0 that n_0 (x) = - \frac{1}{x} \sum_{s \geq 0} \frac{(-1)^s}{(2s)!} x^{2s} is a solution? What's the catch??

why for bessel equations, if n isn't an integer, you can have the solution y(x)=(c1)Jn(x) +(c2)J(-n)x but isn't true if n's an integer?