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Atrium > Mathematics, Physics & Philosophy: Grothendieck no longer wants SGA republished and has asked Laszlo to take down SGA4

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    • CommentRowNumber1.
    • CommentAuthorHarry Gindi
    • CommentTimeFeb 8th 2010
    I'm not sure if any of you have seen this, but I figured you might find it interesting.

    A few days ago, Grothendieck told (I don't know if it was in person or if it was as formal cease and desist) Yves Laszlo to take down the SGA project.

    http://www.math.polytechnique.fr/~laszlo/sga4.html

    Anyone have any details?
    • CommentRowNumber2.
    • CommentAuthordomenico_fiorenza
    • CommentTimeFeb 8th 2010
    • (edited Feb 8th 2010)
    I wasn't aware of this. :-(

    edit: removed the rest of this post. it was a sudden upset reaction to the SGA project shut down.
    • CommentRowNumber3.
    • CommentAuthorDavidRoberts
    • CommentTimeFeb 9th 2010

    How did you find this out, Harry?

    • CommentRowNumber4.
    • CommentAuthorHarry Gindi
    • CommentTimeFeb 9th 2010
    • (edited Feb 9th 2010)
    I went to download SGA 4 and it was gone. That is the former download page.
    • CommentRowNumber5.
    • CommentAuthorDavidRoberts
    • CommentTimeFeb 9th 2010
    • (edited Feb 9th 2010)

    Try searching for the page on G0ogle and go to the cached copy.

    I've sent out a message on the category theory mailing list asking for info about this.

    Edit: I see Harry's been asking elsewhere, and said there he had the files, so I'll leave the above advice for interested others.

    • CommentRowNumber6.
    • CommentAuthorUrs
    • CommentTimeFeb 9th 2010

    Clear case of an attempt to raise demand by shortening supply.

    ;-)

    • CommentRowNumber7.
    • CommentAuthorHarry Gindi
    • CommentTimeFeb 9th 2010
    I'm just curious about why Grothendieck would come out of hiding just to do something (apparently) mean-spirited like that.
    • CommentRowNumber8.
    • CommentAuthorDavidRoberts
    • CommentTimeFeb 9th 2010

    Well one can only speculate. I have a feeling that even the people in the know (Laszlo and collaborators) won't be much more forthcoming, and I'm not going to speculate, despite the natural temptation.

    • CommentRowNumber9.
    • CommentAuthorTim_Porter
    • CommentTimeFeb 9th 2010

    I suspect he may feel dissatisfied with the results, proofs, etc. in the available copy, as there are some glitches and errors. He may also have have turned against mathematics as he felt very disillusioned with mathematicians!

    • CommentRowNumber10.
    • CommentAuthorHarry Gindi
    • CommentTimeFeb 9th 2010
    • (edited Feb 9th 2010)
    I wonder if he'd come out of hiding if somebody proved the standard conjectures and "realized the dream of motives".
    • CommentRowNumber11.
    • CommentAuthorTobyBartels
    • CommentTimeFeb 9th 2010
    • (edited Feb 9th 2010)

    As one can see by following the Google cache, Laszlo has not taken down the files, only the links to them. But I have my own copy now. (Supply and demand, as Urs said!)

    I don't suppose that anybody is competent to speculate clearly about what motivates Grothendieck today. I certainly am not!

    Thanks for the notice, Harry.

    • CommentRowNumber12.
    • CommentAuthorHarry Gindi
    • CommentTimeFeb 9th 2010
    Some information:

    "Tyler Lawson 3 hours ago

    This is in the interest of presenting some information about the situation.

    Grothendieck has issued a "Declaration d’intention de non-publication" - Illusie has received a letter from him. In it (based on my poor French translation ability) he states that essentially all materials that have been published in his absence have been done without his permission. He asks that none of his work should be reproduced in whole or in part, and even further that libraries containing such pirated copies of his work remove them.

    This obviously has ramifications for existing works far beyond SGA4, along with the imminent publication of "Recoltes et Semailles", the Mumford-Grothendieck correspondence in Mumford's collected works, and "Pursuing Stacks".

    Apparently this is common knowledge in the French mathematical community already."
    • CommentRowNumber13.
    • CommentAuthorScottMorrison
    • CommentTimeFeb 9th 2010
    • CommentRowNumber14.
    • CommentAuthorzskoda
    • CommentTimeFeb 10th 2010

    I like Toby's post at http://sbseminar.wordpress.com/2010/02/09/grothendiecks-letter/ a lot!

    • CommentRowNumber15.
    • CommentAuthorTobyBartels
    • CommentTimeFeb 10th 2010

    Thanks, Zoran.

    • CommentRowNumber16.
    • CommentAuthorTobyBartels
    • CommentTimeFeb 14th 2010

    On a related note to Zoran's #14, I myself like comment #85 at http://sbseminar.wordpress.com/2010/02/09/grothendiecks-letter/.

    • CommentRowNumber17.
    • CommentAuthorTim_Porter
    • CommentTimeFeb 14th 2010

    Note also Ronnie's intervention there. He is making the point that AG gave permission for various things to be distributed, so for instance PS seems to cause no problem. I have not the letter in front of me but I wonder if it is not more of a warning to people who have produced pirated (as he sees) version of stuff that is still in copyright for commercial reasons. Also for people who have translated material without permission. Both of those are less dire than some of the interpretations. The question of SGAs is more delicate as AG holds the copyright. It should be said that most of the ideas in say SGA4 are available in digested form in later books (e.g. all the stuff on toposes).

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