Talk:Louis Bachelier

message: In the Academic Career section, should it read "reconciled himself *with* Bachelier" rather than "reconciled himself *to* Bachelier"? —Preceding unsigned comment added by AJR 1978 (talk • contribs) 05:34, 24 December 2005
:*Yes. — Aetheling 12:38, 22 June 2007 (UTC)
replies: text: *My fault. Thanks for pointing it out. I didn't realize that "reconcile to" actually means something quite different. JMBrust 06:50, 15 August 2007 (UTC)
thread_title:  Grammar 

message: Could we please get a third reference for the date of his death?  The page http://sjepg.univ-fcomte.fr/sjepgbis/libre/bachelier/panneaux/panneau2/panneau2.html shows him dead on the 28th April. (which is correct?)
:* The Dictionary of Scientific Biography also has his dates as 11 March 1870 - 28 April 1946. I added a reference to this effect. -- phoebe/(talk)  00:57, 13 June 2007 (UTC)
replies: text: * The website of the University of Franche-Comte has a detailed page of facts on Louis Bachelier, including the death date of 28 April 1946. Repères Biographiques — Aetheling 17:15, 21 June 2007 (UTC)
thread_title:  Death Date 

message: This article was automatically  assessed because at least one article was rated and this bot brought all the other ratings up to at least that level. BetacommandBot 07:14, 27 August 2007 (UTC)
thread_title:  WikiProject class rating

message: In the introduction: 
Louis Jean-Baptiste Alphonse Bachelier (March 11, 1870 – April 28, 1946)[1] was a French mathematician at the turn of the 20th century. He is credited with being the first person to model the stochastic process now called Brownian motion, which was part of his PhD thesis The Theory of Speculation, (published 1900).
His thesis, which discussed the use of Brownian motion to evaluate stock options, is historically the first paper to use advanced mathematics in the study of finance. Thus, Bachelier is considered a pioneer in the study of financial mathematics and stochastic processes.''
I think it should be added something about Einstein and Smoluchowski, at least a note. In spite of the fact they have published five years later for the first and six for the latter, there is no reason to believe they have copied each other. Further, they were concerned about different things. Furthermore, as far as I know, maybe I wrong, Louis Bachelier has not modelled Brownian motion itself as did Einstein and Smoluchowski. Thus, it is wrong to credit just one; so far I have just found Einstein and Smoluchowski on the books of stochastic process, just in Wikipedia articles, such as the one about SDE I saw mentions to Louis Bachelier as one of the founders of stochastic calculus. 
Jorge Pires (talk) 18:05, 21 June 2015 (UTC)
thread_title:  Stochastic models 

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thread_title:  External links modified 

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thread_title:  External links modified 

message: I tried finding the exact age that Bachelier had in the picture shown, but I couldn't find anything useful. The English version shows that he was aged 20, while the French version shows age 15 (which I think, honestly, could be correct looking at the facial features in the photo). If anyone can look into this better than me I would be happy to move aside. Thank you! Giacomo Padova (talk) 22:30, 27 February 2024 (UTC)
replies: text: There is no way to reliably verify the date other than by facial features, unless it is asserted as so by a reliable source, which is difficult for timing of pictures. So I would go for the French version or just omit the date. Limit-theorem (talk) 02:12, 28 February 2024 (UTC)
thread_title:  Age in the photo