Testing
If all goes according to plan, a link to this post should show up on my Twitter feed shortly. Thanks to twitterfeed.
May 22, 2009  Posted by John Armstrong  Uncategorized
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About this weblog
This is mainly an expository blath, with occasional highlevel excursions, humorous observations, rants, and musings. The mainline exposition should be accessible to the “Generally Interested Lay Audience”, as long as you trace the links back towards the basics. Check the sidebar for specific topics (under “Categories”).
I’m in the process of tweaking some aspects of the site to make it easier to refer back to older topics, so try to make the best of it for now.

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 The Submodule of Invariants
 More New Modules from Old
 New Modules from Old
 Reducible Modules
 Irreducible Modules
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 All Derivations of Semisimple Lie Algebras are Inner
 Decomposition of Semisimple Lie Algebras
 Back to the Example
 The Radical of the Killing Form
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 Cartan’s Criterion
 A Trace Criterion for Nilpotence
 Uses of the JordanChevalley Decomposition
 The JordanChevalley Decomposition (proof)
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