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Why is there a link to the Feigenbaum constant in this page? It seems to indicate that the constant is named after Edward Feigenbaum, which is not true! The constant is named after Mitchell Feigenbaum!
- You're right, I removed that link. SpuriousQ 21:04, 28 July 2005 (UTC)
Isn't he Mitchell Feigenbaum's older brother? This seems worthy of inclusion if true.
Prof. Feigenbaum received his Ph.D in 1960
Extract of discussion at Wikipedia:Reliable sources/Noticeboard:
Hi, Based on a recent change of the year when Prof. Feigenbaum received his Ph.D in the article on Edward Feigenbaum, I found some conflicting references. So I send an email to the Mathematics Genealogy Project how they came to their year 1960, although different other good references mentioned 1959. I received a confirmation from their source that "Prof. Feigenbaum received his degree in 1960 although he completed and likely defended his thesis in 1959", based on checking the two copies the Hunt library has of the Ph.D dissertation of Prof. Feigenbaum.
... Mitch Keller from the Mathematics Genealogy Project was mentioning in his email the primary sources ProQuest Dissertations and Theses and the Carnegie Mellon University Library Catalog. Both are telling 1960 as the year for Feigenbaum's Ph.D. Are this considered reliable sources for Wikipedia? ... -- SchreyP (messages) 18:01, 19 September 2011 (UTC)
- Yes, ProQuest Dissertations and Theses shows a publication year of 1960 for his dissertation/thesis. That seems sufficient to me unless this is a contentious issue. If it is contentious, simply state that some sources state 1959 and others 1960. It doesn't seem very likely to me that someone would be awarded a degree prior to the acceptance of their final thesis or dissertation but I don't know how the publication date is established and if it differs from the date on which the document was accepted by the university. If other authors have looked into that and established 1959 as the year in which he was awarded his degree then that seems more reliable than going by the date of publication because of the assumptions involved. ElKevbo (talk) 18:13, 19 September 2011 (UTC)
- I'm not sure if this is a contentious issue. The email I received from Mathematics Genealogy Project mentions:
- "We have two copies of his dissertation at the Hunt Library both dated October 9th, 1959. However, one of the copies includes an additional page that includes signatures of acceptance and approval by the thesis supervisor as well as the dean of the school dated September 9th, 1960 and January 26th, 1960 respectively. The first copy was published in 1959 and the second in 1960. It is safe to say that Prof. Feigenbaum received his degree in 1960 although he completed and likely defended his thesis in 1959. ... Sincerely, Hunt Reference."
- Based on this, the Mathematics Genealogy Project keeps the Ph.D year on 1960. Is this considered contentious?
- Next could you provide a referenceID for his dissertation/thesis in ProQuest Dissertations and Theses that I can use as reference? Thanks, SchreyP (messages) 18:46, 19 September 2011 (UTC)
- The ProQuest Document ID is 301899261 and the Document URL is http://ezproxy.lib.indiana.edu/login?url=http://search.proquest.com/docview/301899261?accountid=11620 ElKevbo (talk) 19:34, 19 September 2011 (UTC)