Talk:Peter Gustav Lejeune Dirichlet

message: Anybody know how to pronounce his name? It would be nice to have pronounciation guides since most of us just read the names of the dead guys... — Preceding unsigned comment added by 69.220.112.219 (talk • contribs) 18:51, 1 May 2005‎
:My last undergrad math prof said /DAYRSH-lay/ which can't be right.  I'm tempted to pronounce it French-like, maybe /Day-hreesh-LAY/?  We could use an IPA at the head of the article from someone who's certain what's right. — Preceding unsigned comment added by 74.132.209.231 (talk • contribs) 15:47, 12 August 2006‎
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In Russian we pronounce his name in a French way: without 't' at the end, and 'ch' is pronounced as 'hh'.
Something like [Dee-ree-hlé]. I think it resembles the original pronuciation.  Crocodealer 9 July 2005 11:43 (UTC)
:I've heard his surname pronounced both as French (dee-ree-SHLEH) and as in German (DEE-rikh-let)... Which is right? --Army1987 22:21, 18 December 2006 (UTC)
thread_title: Pronunciation (1) 

message: Dirichlet is famous for proving that there are infinitely many primes in any arithmetic sequence where the terms are relatively prime. The guy started analytic number theory... there should be some mention of that. --Dantheox 04:41, 28 June 2006 (UTC)
thread_title:  Primes in an arithmetic sequence 

message: I presume this means the notion of a function as a set of ordered pairs. I just want to see some evidence. At least one writer (Wiener 1914) attributes this notion to Schröder:
:"what we have done is practically to revert to Schröder's treatment of a relation as a class of ordered couples"(cf Norbert Wiener 1914 A simplification of the logic of relations reprinted in van Heijenoort, Jean (1967, 3rd printing 1976), From Frege to Gödel: A Source Book in Mathematical Logic, 1879-1931, Harvard University Press, Cambridge MA, )
Wiener's reduction of the theory of relation to class (cf commentary in van Heijenoort 1967:224) was carried forward by Hausdorff (1914) and Kuratowski (1921) into the notion of ordered pair set theory uses today. And whether the ZFC definition is the definition of function as far as I'm concerned is also open to debate (I'm researching this. For example, the notion also appears in Bertrand Russell's 1903 without attribution to anyone). Bill Wvbailey (talk) 15:18, 7 August 2009 (UTC)
thread_title:  ''The'' modern formal definition of function 

message: It sometimes gets annoying when Wikipedia tries to be too pedantically accurate.  Hence the "German" pronunciation with hard k.  Certainly every time I've heard this name pronounced in English it sounds more like "DEAR-ish-lay". But each to his own. Benwing (talk) 06:22, 12 March 2012 (UTC)
replies: text: I say /dɨˈɻɪklɪt/, Susskind says /ˈdiɻɪʃleː/, history says /diriˈkleː/. It's Belgian borrowed into German, anything could have happened. ᛭ LokiClock (talk) 22:15, 29 December 2012 (UTC)

text: Correction, it is said /diʀiˈʃleː/ by some Germans, according to German wiki. English pronunciations should be given, but they'll all come out with the same adjustments of the German versions. ᛭ LokiClock (talk) 22:25, 29 December 2012 (UTC)
thread_title:  Pronunciation (2) 

message: I cannot find any references towards Dirichlet's Brain being preserved at a University published before 13 May 2010‎, when this sentence was added on Wikipedia with the sole exception of this. However, the reviews look less than optimal...  
https://www.researchgate.net/publication/258104086_A_rare_anatomical_variation_newly_identifies_the_brains_of_CF_Gauss_and_CH_Fuchs_in_a_collection_at_the_University_of_Gottingen
Nickpips (talk) 01:03, 17 July 2015 (UTC)
thread_title:  Dubious 

message: Gustav Lejeune Dirichlet did not have Fourier and Poisson as doctoral advisors. Indeed, he left Paris without a PhD. Please show citation or other reliable evidence for Poisson and Fourier! Even if it were true, I don't think it could ever have worked; although Fourier and Poisson were friends in their student days, after 1808 they quickly became mortal enemies. Reason was related to Fourier's superior analytical abilities, which proved superior to Poisson's "human math transformer" abilities.
Here is a quote from Mactutor http://www-history.mcs.st-andrews.ac.uk/Biographies/Dirichlet.html
"On 28 November 1825 General Foy died and Dirichlet decided to return to Germany. He was encouraged in this by Alexander von Humboldt who made recommendations on his behalf. There was a problem for Dirichlet since in order to teach in a German university he needed an habilitation. Although Dirichlet could easily submit an habilitation thesis, this was not allowed since he did not hold a doctorate, nor could he speak Latin, a requirement in the early nineteenth century. The problem was nicely solved by the University of Cologne giving Dirichlet an honorary doctorate, thus allowing him to submit his habilitation thesis on polynomials with a special class of prime divisors to the University of Breslau."
75.148.94.222 (talk) 20:43, 25 November 2015 (UTC)
thread_title:  Gustav Lejeune Dirichlet doctoral advisors in error 

message: I would propose to merge Rebecka Mendelssohn into Peter Gustav Lejeune Dirichlet . Lejeune Dirichlet's wife Rebecka does not meet WP:NOTABLE, save that she is his spouse and a member of the Mendelssohn family. The article itself records her only as a passive figure in the lives of her family members. There is little or nothing that can be added to the existing Rebecka Mendelssohn article, save for her children by Lejeune Dirichlet, who are already mentioned in the latter's article. The Lejeune Dirichlet article already covers much of the content of Rebecka Mendelssohn as to her background, so adding the remaining details will not distort it; thus the merger will not cause any problems as far as article size is concerned. Smerus (talk) 07:32, 12 June 2020 (UTC)
replies: text: Klbrain (talk) 22:02, 26 December 2020 (UTC)
thread_title:  Merger proposal