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From: "Bruno Luong" <b.luong@fogale.findmycountry>
Newsgroups: comp.soft-sys.matlab
Subject: Re: factorize singular symmetric matrix
Date: Tue, 29 Sep 2009 20:06:04 +0000 (UTC)
Organization: FOGALE nanotech
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Stefano, I find this paper where one can find deep discussion about rank estimation based on Cholesky and QR. http://eprints.ma.man.ac.uk/1193/01/covered/MIMS_ep2008_56.pdf

Time for some reading.

Bruno