Hermite Function: Writing x^2r in Polynomial Form

  • MHB
  • Thread starter Another1
  • Start date
  • Tags
    Function
In summary, a Hermite function is a special type of mathematical function named after Charles Hermite. It is commonly used in mathematical physics and engineering and is denoted by the letter H. The polynomial form of x^2r is a combination of terms with powers of x, and can be written using the Hermite polynomial. Hermite functions have many important applications in mathematics and science, particularly in quantum mechanics, statistical mechanics, and signal processing. They have unique properties such as orthogonality, a specific recurrence relation, and satisfying the Hermite equation.
  • #1
Another1
40
0
How can \(\displaystyle x^{2r}\) be written in hermite polynomial form?
 
Mathematics news on Phys.org
  • #3
Another said:
How can \(\displaystyle x^{2r}\) be written in hermite polynomial form?
The Hermite polynomials are an orthogonal set so if you are looking for \(\displaystyle x^{2r} = a_0 H_0(x) + a_1 H_1 (x) + \text{ ...}\), then
\(\displaystyle a_n = \int_{-\infty}^{\infty} x^{2r} \left ( H_n (x) \right ) ^2 e^{-x^2} ~ dx\)

That will get you the series term by term. If you want a more general expression you'll likely have to use the generating function to get the \(\displaystyle \left ( H_n (x) \right )^2\) expression.

-Dan
 

Related to Hermite Function: Writing x^2r in Polynomial Form

1. What is a Hermite function?

A Hermite function is a special type of mathematical function that is commonly used in mathematical physics and engineering. It is named after the French mathematician Charles Hermite and is denoted by the letter H.

2. What is the polynomial form of x^2r?

The polynomial form of x^2r is a combination of terms with powers of x, such as ax^2 + bx + c, where a, b, and c are constants. It is a representation of a polynomial function with a degree of 2r.

3. How is a Hermite function written in polynomial form?

A Hermite function can be written in polynomial form by using the Hermite polynomial, which is a specific type of polynomial function that is used to represent Hermite functions. The polynomial form of a Hermite function is typically written as H_r(x), where r is the degree of the polynomial.

4. What is the significance of the Hermite function in mathematics and science?

Hermite functions have many important applications in mathematics and science, particularly in the areas of quantum mechanics, statistical mechanics, and signal processing. They are also useful for solving differential equations and studying the behavior of physical systems.

5. Are there any properties or special characteristics of Hermite functions?

Yes, there are several properties and characteristics of Hermite functions that make them unique. They are orthogonal, meaning that they are perpendicular to each other when plotted on a graph. They also have a specific recurrence relation and satisfy a differential equation known as the Hermite equation.

Similar threads

Replies
2
Views
2K
Replies
1
Views
691
Replies
1
Views
1K
  • General Math
Replies
7
Views
1K
Replies
4
Views
1K
Replies
8
Views
1K
  • General Math
Replies
5
Views
989
Replies
4
Views
1K
Replies
7
Views
992
Replies
4
Views
1K
Back
Top