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Re: JordanDecompose[]

• To: mathgroup at smc.vnet.net
• Subject: [mg124097] Re: JordanDecompose[]
• From: Leslaw Bieniasz <nbbienia at cyf-kr.edu.pl>
• Date: Mon, 9 Jan 2012 03:14:20 -0500 (EST)
• Delivered-to: l-mathgroup@mail-archive0.wolfram.com
• References: <je3vti$eeh$1@smc.vnet.net> <je6e5h$q7b$1@smc.vnet.net>

On Fri, 6 Jan 2012, danl at wolfram.com wrote:

>
> Here is a mildly edited comment from the code.
>
> "This routine uses the method based on matrix presentations.
>   It is a more general method than the one used in [...]
>   (the latter is faster but does not always work, for derogatory matrices).

What is exactly the reference marked by [...], and is there any 
description of your algorithm available anywhere? I believe this
kind of algorithms can't be a proprietary secret of Wolfram?

Leslaw