II order homogeneous differential equation solution

In summary, a second order homogeneous differential equation is a mathematical equation that involves a function and its first and second derivatives, where all the terms are of the same degree and do not contain any constant terms or terms without derivatives. To solve it, one can assume a solution of the form y = e^(rx) and find the values of r through a quadratic equation. The difference between a homogeneous and non-homogeneous differential equation lies in the presence of constant terms. The order of a homogeneous differential equation represents the highest derivative present, and it can have an infinite number of solutions due to the presence of arbitrary constants in the general solution.
  • #1
Sourabh N
635
0
I am trying to solve the diff. equation -

a[tex]\frac{d^{2}x}{dr^{2}}[/tex] + (br + c/r)[tex]\frac{dx}{dr}[/tex] + dx = 0

I got it while solving a variant of damped harmonic oscillation.

Any hints (Frobenius method won't work)
 
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  • #2
a[tex]\frac{d^{2}x}{dr^{2}}[/tex] + (br + c/r)[tex]\frac{dx}{dr}[/tex] + dx = 0

Sorry, this is the correct eqn.
 
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1. What is a second order homogeneous differential equation?

A second order homogeneous differential equation is a mathematical equation that involves a function and its first and second derivatives, where all the terms are of the same degree. It does not contain any constant terms or terms without derivatives.

2. How do you solve a second order homogeneous differential equation?

The general solution to a second order homogeneous differential equation can be found by assuming a solution of the form y = e^(rx), where r is a constant. This assumption reduces the equation to a quadratic equation, which can be solved for the values of r. These values of r can then be used to find the general solution.

3. What is the difference between a homogeneous and non-homogeneous differential equation?

A homogeneous differential equation is one where all the terms are of the same degree, while a non-homogeneous differential equation contains terms of different degrees. In other words, a homogeneous equation does not have any constant terms, whereas a non-homogeneous equation does.

4. What is the significance of the order of a homogeneous differential equation?

The order of a homogeneous differential equation represents the highest derivative that appears in the equation. For a second order homogeneous differential equation, for example, the highest derivative present will be the second derivative.

5. Can a second order homogeneous differential equation have more than one solution?

Yes, a second order homogeneous differential equation can have an infinite number of solutions. This is because the general solution will contain two arbitrary constants, which can take on different values for different solutions.

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