A restart/some updates
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\newcommand{\coMod}{\mathrm{coMod}} \newcommand{\fr}[1]{\mathfrak{#1}}\]
I used to post relatively frequently on this blog as an undergraduate, and essentially stopped once I started grad school. It seems fun to try to restart it (and post with far less frequency than I used to). (I have archived the old posts; if, for some reason, you want to see them, let me know.) I will soon add to this post a discussion about a recent article that I finished. It is concerned with a few different, but related, topics, and I would like to illustrate some of the pretty linear algebra and geometry surrounding them.