I will be attaching Dmitry's pdf.

The basic difference is that I have gone back to a form closer to the
original paper to avoid computing an ill-conditioned SVD.

Dmitriy also said:

I guess at this point i don't understand the details of block QR. I guess
> i'll need to read up on block QR. I guess you could indeed go into a little
> more into details of that qr() call and perhaps give geometry of individual
> Yi, Qi and Ri matrices in step 1 ( i assume they should have s x (k+p), s x
> ?, ? x (k+p) where s is the block height .)
>

There isn't anything magic about the block QR and I doubt you will find any
information on the variant that I am using.  The basic idea is just that I
am doing QR decompositions on row-wise blocks of A Omega.

On Sun, Apr 11, 2010 at 10:54 PM, Ted Dunning <ted.dunn...@gmail.com> wrote:

>
> Can you attach that to the JIRA?  Attachments are stripped from the mailing
> list, I think.
>
> On Sun, Apr 11, 2010 at 9:55 PM, Dmitriy Lyubimov <dlie...@gmail.com>wrote:
>
>> For reference, i am attaching summary of our previous discussion  which i
>> took liberty of slightly reworking.
>
>
>

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