Cohn, PM (2003) A remark on the quasi-inverse of a product. Illinois Journal of Mathematics , 47 (1/2) 87 - 88.
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Proof that ab has a quasi-inverse if and only if ba does, with reasons
|Title:||A remark on the quasi-inverse of a product|
|Keywords:||product, quasi-inverse, elementary matrix|
|UCL classification:||UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Mathematics|
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