Eigenvalues of Laplace eq in the circle.

In summary, the Laplace equation in the circle is a partial differential equation that describes the distribution of potential or temperature in a circular region, given by the formula ∆u = 0. The eigenvalues of this equation represent the possible values of the unknown function u that satisfy the equation and can be determined by solving the associated eigenvalue problem. These eigenvalues have various physical applications, such as modeling electric fields, temperature distributions, and fluid flows in circular regions. Real-life examples of the Laplace equation in the circle include the electric potential in a circular capacitor, temperature distribution in a circular metal plate, and velocity field of a circular vortex.
  • #1
krocho
4
0
Does anybody know a web page or a book, or the general method to find the eigenvalues and the eigenfunctions of
laplacian u =lambda u inside the circle
u=0 in the boundary

thanks
 
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  • #2

FAQ: Eigenvalues of Laplace eq in the circle.

What is the Laplace equation in the circle?

The Laplace equation in the circle is a partial differential equation that describes the distribution of potential or temperature in a circular region. It is given by the formula ∆u = 0, where ∆ is the Laplace operator and u is the unknown function.

What are eigenvalues of the Laplace equation in the circle?

The eigenvalues of the Laplace equation in the circle are the solutions to the eigenvalue problem associated with the Laplace operator. These values represent the possible values of the unknown function u that satisfy the Laplace equation.

How are eigenvalues of the Laplace equation in the circle determined?

The eigenvalues of the Laplace equation in the circle can be determined by solving the eigenvalue problem, which involves finding the values of u that satisfy both the Laplace equation and certain boundary conditions. These values are typically found using techniques such as separation of variables or the method of eigenfunction expansion.

What are the physical applications of the eigenvalues of the Laplace equation in the circle?

The eigenvalues of the Laplace equation in the circle have various physical applications, particularly in areas such as electromagnetism, heat transfer, and fluid dynamics. They can be used to model and analyze the behavior of electric fields, temperature distributions, and fluid flows in circular regions.

Are there any real-life examples of the Laplace equation in the circle?

Yes, there are many real-life examples of the Laplace equation in the circle. Some common examples include the electric potential within a circular capacitor, the temperature distribution in a circular metal plate, and the velocity field of a circular vortex. The eigenvalues of the Laplace equation in these examples represent the possible values for the potential, temperature, or velocity at each point in the circular region.

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