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This is my experimental math blog which I don't actively maintain right now. See this AMS notice on math blogging if you're interested in blogging.

On a Hilbert space, $H$, the standard matrix trace can be generalized to a special class of bounded operators on $H$ called the trace class operators. In this expository article on trace class operators, we show how to arrive at theorems about these operators via a well known analogy with $l_p$ spaces.