Wikipedia:Articles for deletion/Quaternionic matrix: Difference between revisions

Revision as of 22:48, 1 September 2010

Revision as of 23:19, 1 September 2010

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* '''comment''' The determinant and therefore the eignenvalue problem are where you're going to have problems with such matrices. When calculating the determinant of a real or complex matrix you can do so in a variety of ways with order of multiplication usually ignored, but order matters when multiplying quaternions. A lot of the sources seem to be concerned with this problem, but more as something they're all trying to address, perhaps in different ways, rather than a known definition they can all agree on so which we can be pretty sure of.--<small>[[User:JohnBlackburne|JohnBlackburne]]</small>^{[[User_talk:JohnBlackburne|words]]}<sub style="margin-left:-2.0ex;">[[Special:Contributions/JohnBlackburne|deeds]]</sub> 21:05, 1 September 2010 (UTC)

** Which is, if anything, a reason more to keep this article, not to delete it. It seems a lively topic in mathematics. --[[User:Cyclopia|<font color="green">Cycl</font><big>o</big><font color="green">pia</font>]][[User talk:Cyclopia|<font color="red">^talk</font>]] 22:48, 1 September 2010 (UTC)

*'''comment''' We need definitions and results we can use for the article, which I don't see in any of the sources which all seem recent. It's not the place of Wikipedia to try and summarise ongoing, maybe even contentious, results. [http://www.jstor.org/pss/20488503 this] looks more promising but I can't read beyond the first page.--<small>[[User:JohnBlackburne|JohnBlackburne]]</small>^{[[User_talk:JohnBlackburne|words]]}<sub style="margin-left:-2.0ex;">[[Special:Contributions/JohnBlackburne|deeds]]</sub> 23:19, 1 September 2010 (UTC)