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Finding repeated eigenvalues #44

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smukhe-gh opened this issue Mar 4, 2021 · 2 comments
Closed

Finding repeated eigenvalues #44

smukhe-gh opened this issue Mar 4, 2021 · 2 comments

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@smukhe-gh
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Hi, is there a way to output all the eigenvectors corresponding to the same eigenvalue? Currently, I get

Invariant subspace of dimension 1 (up to requested tolerance `tol = 1.0e-12`), which is smaller than the number of requested eigenvalues (i.e. `howmany == 2`); setting `howmany = 1'.

Is there a way around this, or is this a limitation of iterative methods in general?

Thanks

@Jutho
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Jutho commented Mar 4, 2021

Read my response to a similar question on Julia Discourse here:

https://discourse.julialang.org/t/possible-bug-in-krylovkit-eigsolve/55962/9

@smukhe-gh
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Thanks for the pointer!

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