Re: [eigen] lowest eigen value only

[Sebastian Costamagna <costagol@xxxxxxxxx>]

Hi Guys, 

Can someone please remove me from this mailing list?. I tried to do it myself following instructions available but clearly it's not working. There were already other emails about emphasizing how important is to take this seriously. 

Thanks in advance, 

Sebastian 

El mar., 16 de noviembre de 2021 09:00, Peter <list@xxxxxxxxxxxxxxxxx> escribió:

Dear Rasmus,

On 20.01.21 19:02, Rasmus Munk Larsen wrote:
> I don't believe that functionality is currently available in Eigen.. In general, there is no terribly efficient algorithm for doing so, unless you have a cheap way to compute or apply the inverse of the original matrix. I am
> personally working on a fast implementation of ?stebz (spectral bisection) for Eigen, which along with tridiagonalization will make such functionality available and reasonably efficient. I hope to be able to submit a merge
> request within the next month or so. Of course, Dhillon & Parlett's "Holy Grail" algorithm behind DSYEVR might be better still, but I don't have any immediate plans of implementing it.

any news on this?

Best regards,
Peter