Talk:Harold Scott MacDonald Coxeter

message: I don't think it's reasonable to say that he was the 20th century's greatest geometer. He may have been the greatest in his particular flavor of geometry, but certainly people like Grothendieck and Thurston can be called geometers - it's like saying that Conway was the 20th century's greatest algebraist.130.238.5.5 22:23, 10 May 2005 (UTC)
thread_title: Untitled

message: Hi. How did Coxeter prohop his name? I'm a native speaker of English and it's not clear even for me. Thanks for your help. 64.48.158.34 16:11, 20 May 2006 (UTC)
replies: text: The biography King of Infinite Space (which I found rather dull) says that, as a firm vegetarian, he was a bit distressed to bear a name derived from cock-setter, an operator of cockfights.  That's a hint to pronunciation. —Tamfang (talk) 19:23, 26 May 2009 (UTC)

text: I imagine it's like Exeter. —Tamfang (talk) 07:05, 24 June 2023 (UTC)
replies: text: Stress on the first syllable, I assume you mean... AnonMoos (talk) 19:59, 24 June 2023 (UTC)
thread_title:  Pronunciation of name? 

message: As it stands, the article doesn't agree with its sources. According to MacTutor History of Mathematics, he received his B.A. in 1929, but the article says 1928 right now. King of Infinite Space doesn't say outright when he got the degree, but says that he completed the Mathematical Tripos in 1928, went to Vienna during the summer and started on his Ph.D. work immediately thereafter. Roberts' sources for this are Trinity College records and the article "Geometry at Cambridge, 1863-1940" by June Barrow-Green and Jeremy J. Gray in Historia Mathematica, June 2006, 42. The article by Barrow-Green and Gray doesn't say anything about Coxeter's B.A., but dates his Ph.D. to 1932, at odds with the Wikipedia article and MacTutor, and also with Roberts, who says that he submitted his dissertation in 1931 (reference: the dissertation itself). There is of course the possibility that Coxeter completed the necessary work for the degrees in 1928 and 1931 but wasn't awarded the degrees until 1929 and 1932, but these sources don't say that outright. //Essin (talk) 23:50, 7 December 2008 (UTC)
thread_title:  Year of B.A. and Ph.D. 

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thread_title:  External links modified 

message: Mathematicians are human and subject to making mistakes, including Coxeter. One instance is cited at Bilinski dodecahedron. Apparently 48 years transpired before Branko Grünbaum noted the error.
Coxeter also claimed that the Lorentz group is isomorphic to the Möbius group in 1965:
* "The Lorentz group and the group of homographies", in L. G. Kovacs & B. H. Neumann (editors) Proceedings of the International Conference on The Theory of Groups held at Australian National University, Canberra, 10—20 August 1965, Gordon and Breach Science Publishers
While other sources also assert this isomorphism (as seen in the Möbius group article), the assertion would imply that there are parabolic transformations in the Lorentz group (Galilean transformations are parabolic but are not in the Lorentz group). The assertion is absurd. Various issues arise: the groups are in fact group actions, one on the plane the other on 4-space, and projective structure underlies the Möbius group but not the Lorentz group. Perpetuation of this error continues not only in this article but also in History of Lorentz transformations and other Encyclopedia articles. — Rgdboer (talk) 23:24, 16 August 2019 (UTC)
replies: text: Can you fix this in whole or in part?  Zaslav (talk) 03:23, 6 December 2021 (UTC)
thread_title:  Fallible 

message: Is he the namesake of the integral
:\int\limits_{0}^{\pi/2} \arccos \Biggl [  \frac{\cos x }{1 + 2 \cos x}\Biggl]dx = \frac{5 \pi^2}{24},
known as Coxeter's integral? Nerd271 (talk) 13:55, 16 April 2020 (UTC)
thread_title:  Coxeter's integral 

message: Coxeter was always known professionally as "H.S.M. Coxeter", never "Harold Scott MacDonald Coxeter".  According to WP naming principles, the article should have the name "H.S.M. Coxeter".  Is there an objection to moving it?  Zaslav (talk) 03:22, 6 December 2021 (UTC)
replies: text: Is the initials-only form what he preferred to be known as, or is it due to British scientific journal publishing practices? AnonMoos (talk) 19:58, 24 June 2023 (UTC)
replies: text: As there is no other people named Coxeter in the entirety of Wikipedia, I propose that this page be renamed to "Harold Coxeter". If anyone wants to express their opinion, they can do so below. 2003 LN6 23:16, 8 February 2024 (UTC)
replies: text: I understand that he was called Donald rather than Harold.  But I'd prefer H. S. M.; compare J. R. R. Tolkien, R. K. Milholland.  —Tamfang (talk) 04:09, 30 March 2024 (UTC)
replies: text: I agree -- Harold Scott MacDonald Coxeter was his legal name, and H.S.M. Coxeter was his publishing name, while "Harold Coxeter" would be something fabricated for Wikipedia. AnonMoos (talk) 19:46, 30 March 2024 (UTC)
thread_title:  Title