I edit content in my subject area (algebra), and perform technical edits on recently changed or created articles. I like peaceful collaboration on content, and unnoticed technical improvements.
Wikipedia allows both content providers and technical editors to work together. Content providers lend their invaluable expertise to wikipedia by composing the core of the articles. Technical editors save content providers from worrying about essential tasks such as minor editing and technical wiki markup.
I tend to think content providing should be left up to subject experts, and so only contribute content to algebra articles. However, wikipedia is a huge place and I enjoy helping with technical editing in a variety of contexts. I firmly believe in the utility of categories and the importance of not WP:BITEing new editors, so I enjoy doing new pages patrol, especially to categorize new pages and help new content providers understand the wikipedia process. I also believe firmly in the necessity of WP:RS reliable sources, and so spend time WP:V verifying articles in my subject area.
I like to collaborate on articles, so I tend to edit recently edited articles. I firmly believe in consensus, and follow WP:1RR by discussing changes on talk pages and modifying edits rather than reverting them. I definitely make mistakes in technical editing, and certainly make some suboptimal content edits. When I do this to an article you're working on, just leave me a note on my talk page, but please be nice.
Derived series - Derived length cleanup, and structure of the quotients of the derived series of a free group due to M. Ward.
Frobenius group - Classification of complements and kernels. Math is done, just need to publish it or realize someone else has so it can be properly cited. Most can be cited to Ron Brown.
Frobenius-Schur indicator - Character theoretic description of higher F-S indicators. Check details for reducible reps (I suspect the two definitions differ).
Orthogonal group - for the finite groups: order cleanup, coincidences for odd char need to be written down
SVD Collaboration or Spectrometer with vertex detector - very few primary sources, but the project must be well funded to be so well cited. Just need to find out who funds it or where so I can find a newspaper article or something about it.
Unref cleanup - every group theory article should be well referenced, and every math article should be referenced or tagged. By their very nature, math articles should be easy to provide primary sources, and if they are truly notable, it should be easy to provide secondary sources. Also check out the tertiary sources used in some articles, as they have been inaccurate on a few occasions.