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Article #21

Re: XAY+XB+CY+D=0, HELP

#21
From: Neil F. Palumbo
Date: Sat, 12 Sep 1992 01:58
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I am trying to solve the matrix equation:

		XAY + XB + CY + D = 0, 

where A is (nxn), B (nxm), C (mxn) and D (mxm) with n > m. Furthermore,
the unknown matrices {X,Y} must be of a particular structure, namely X must
have the structure:

		| xx xx .. xx 0 ...................................0 |
		| 0  0  .. 0  xx xx .. xx 0 .......................0 |
		| 0  0  ...............0  xx xx .. xx 0 .............|
		| .................................................. |
		| 0  0  ..............................0  xx xx .. xx |

and Y must have the structure Y=X' (note Y not= X). Any ideas, comments etc?
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From: neilfp@astro.ocis.temple.edu (Neil F. Palumbo)
Newsgroups: sci.engr.control
Subject: Re: XAY+XB+CY+D=0, HELP
Message-ID: <1992Sep12.015803.15084@cronkite.ocis.temple.edu>
Date: 12 Sep 92 01:58:03 GMT
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