Welcome!

Hello, C h fleming, and welcome to Wikipedia! Thank you for your contributions. I hope you like the place and decide to stay. Here are a few good links for newcomers:

I hope you enjoy editing here and being a Wikipedian! Please sign your name on talk pages using four tildes (~~~~); this will automatically produce your name and the date. If you need help, check out Wikipedia:Where to ask a question, ask me on my talk page, or place {{helpme}} on your talk page and someone will show up shortly to answer your questions. Again, welcome! -- Longhair | Talk 20:08, 3 August 2005 (UTC)[reply]

Discussion[edit]

Hi, CHF, I'd encourage you to elaborate in your user page about what graduate program you are in. If, as I gather, you are preparing to write a dissertation in quantum or classical gravity, you might be interested in taking a look at WikiProject GTR, a project still in its incipient stages.---CH (talk) 14:56, 27 October 2005 (UTC)[reply]

I put in a bio. I am reading your GTR project page

Oh cool, you might know Prof. Dan Silver and Susan Williams in the Math Department at the Univ. of South Alabama. They have done some very interesting work relating knot theory and symbolic dynamics (see my user page).---CH (talk) 00:20, 29 October 2005 (UTC)[reply]

I do know them. I took linear algebra and differential equations II under Susan and I took modern algebra under Dan. They were probably the best math professors at the university.

Though I managed to get out without taking the course in knot theory (Carter was teaching it, I believe) and I never took up the opportunity to learn symbolic dynamics under Susan because I was already busy working with Prokhorov.

I'm sure they would remember me. I dominated the math competition. http://www.southalabama.edu/mathstat/info/schedules/aaanashwinners.shtml

Congrats :-) BTW, if you want to ever need to learn some symbolic dynamics, the textbook by Kitchens is pretty good, and (at an undergraduate level) the first half of Lind and Marcus is excellent. There are also a useful set of course notes by Karl Petersen available at his website. There are also some fine articles in various collections. One of the best short introductions to both ergodic theory and symbolic dynamics is

Keane, Michael S. (1991). "Ergodic theory and subshifts of finite type". Ergodic theory, symbolic dynamics, and hyperbolic spaces. pp. 35–70. {{cite conference}}: Unknown parameter |booktitle= ignored (|book-title= suggested) (help)

See also the article by Mayer in that book for some applications to transfer operators (something you'll probably encounter in physics). See the article by Pollicott for some interesting connections with primes.---CH (talk) 20:18, 30 October 2005 (UTC)[reply]

Oops, one more thing: Mike Boyle, in the Math Dept at UMD, is a former Ph.D. student of Doug Lind (who sat on my own commitee, although I didn't have much contact with him), and a leading expert in symbolic dynamics. Bill Goldman is an expert on hyperbolic geometry and allied stuff. In fact, UMD is one of the best places to study symbolic dynamics.---CH (talk) 20:22, 30 October 2005 (UTC)[reply]

Welcome![edit]

Hi! Thanks for your additions to Interpretation of quantum mechanics. One request: please sign your name to posts on talk pages by using four tildes. One invitation: You are invited to join the general conversations at Wikipedia:WikiProject Physics and Wikipedia:WikiProject Mathematics.-- linas 22:53, 9 December 2005 (UTC)[reply]

Sorry. I usually sign my posts. Must have forgotten(CHF 23:47, 9 December 2005 (UTC))[reply]

Higgs boson consensus vote[edit]

There is currently a vote on the Higgs boson talk page over whether or not to merge the pop culture references article with the main article. I noticed you've previously contributed to the debate, so your vote would be helpful in establishing a consensus (or, perhaps, a vote of "no consensus", in which case the problem will be referred to AfD). Thanks! -DMurphy 21:35, 30 March 2006 (UTC)[reply]

Positive-definite matrix[edit]

I wrote a belated reply at Talk:Positive-definite matrix. Please let me know if it still doesn't make sense to you. Cheers, Jitse Niesen (talk) 13:49, 29 November 2008 (UTC)[reply]