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Questions tagged [eigenvalues]

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Finding eigenvalues of the Laplacian on solenoidal (divergence-free) vector fields

In Mathematica it is easy to find eigenvalues of the Laplacian in simple cases. For example, on $\Omega\in \mathbb{R}^2$: ...
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Trying to extract the Eigen values and Eigen vector of a matrix

I have a Matrix A, which is a function of ω. I wanted to find the eigenvalues and eigenvectors of this matrix, how to do it. I have used the EigenSystem function ...
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Eigenvectors in the limit $\mu\rightarrow 0$ are not the same as eigenvectors when setting $\mu=0$ from the beginning

I would like to find the eigenvectors of a matrix and see what the eigenvectors look like in the limit of $\mu\rightarrow 0$: ...
49 views

Remove +0Is from Root function

I'm trying to find the zeros of the eigenvalues (functions of $k_x$) of a self-adjoint $4\times4$ matrix H: ...
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Trace change of one single value in a list

I have a list of eigenvalues, say: list1 = {10., 9., 9., 8.5, 7.5, 6.5, 6.1, 5.6, 4.5, 4., 4., 3.8, 3., 3., 1., 1., 1., 0.8, 0.5, 0.5} After slightly modifying ...