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Suppose in mathematics, someone finds a completely new elementary proof of a famous theorem and wants his work ''peer reviewed'' on a site like MathOverflow or MathStackExchange before submitting to a formal journal. How safe would this be ?

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    It is NOT safe, at all. A formal journal or a conference "with determined privacy policies" would be considered for "peer reviewing", not such a web site...
    – user41207
    Commented Jan 11, 2016 at 15:54
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    Mathoverflow and Math.SE are not for peer review. Your post will be closed very quickly. Commented Jan 11, 2016 at 17:29
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    "someone finds a completely new elementary proof of a famous theorem and wants his work ''peer reviewed'' on a site like MathOverflow or MathStackExchange" -- then they are probably not experts (or else they would know to publish in a journal), hence their proof is most likely wrong.
    – Raphael
    Commented Jan 11, 2016 at 22:18
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    Unfortunately you're asking a good question, "can you crowdsource peer review," and a bad question, "what if I find an elementary proof of Fermat's last theorem and tell people about it," which have a bit different answers. I suggest editing your example to something less crank-ish.
    – user18072
    Commented Jan 12, 2016 at 4:39
  • @FedericoPoloni but even when it's closed, the post notice will contain helpful links to show how should one can improve the post?
    – Ooker
    Commented Mar 17, 2018 at 7:28

3 Answers 3

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If you post under your real name, I think that it is quite "safe" in the sense that your work is unlikely to get stolen because of this. In fact, posting your work on a public forum is the best defense I know against intellectual theft.

On the other hand, "Is this proof of a known result correct?" is generally not regarded as an appropriate MathOverflow question. There can be a fine line between asking questions that come up in one's research and asking others to vet your research. The former is the purpose of the site, whereas the latter is discouraged. Your question seems to fall on the wrong side. I think it would stay open, at least, on math.stackexchange.com.

If you have not already published work in the past, I might recommend that you try to get one-on-one help from a qualified (and trusted) mentor, rather than trying to crowd-vet your proof. It is not impossible to do research mathematics completely independently and with no academic affiliation -- I have seen people do so quite well -- but it is very rare and much harder than doing it with some assistance. It would be reasonable to seek help from the math department of any university near you. If the mathematicians you get in contact with can't help you, see if they can connect you to someone who can.

Postscript: I have observed on this site and others that amateur mathematicians often have significant concerns that their work will be stolen. I think these sentiments are very unfortunate, because they can serve to prevent these people from getting what would benefit them most: qualified help and supervision. I don't want to say that it is strictly impossible for someone's work to get stolen, but here are two things: (i) I have done mathematics for my entire adult life (more than 20 years), and I have never seen or heard of an amateur mathematician's work being stolen by a professional mathematician. Reports of theft of mathematical work of anyone by anyone have come to me...but very, very rarely. (ii) I would estimate that about 90% of the work done by amateur mathematicians is not publishable. This is not to say that most amateur mathematicians are hopeless or incapable of doing real, publishable work. However most professional mathematicians train for years and make use of enormous amounts of human capital in order to get to the point where they can do and write up publishable work. If they had been afraid of showing their work to their mentors, they would not have gotten anywhere in most cases. Just something to think about.

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If you are an 'outsider' to the mathematical community and you have an argument which you believe provides a significant mathematical advance, you may well have broken new ground - but you should also seriously consider the possibility that your argument contains a mistake, and you should carefully think about your interactions with the mathematical community in that light.

I don't say this to discourage you, but I do want to impress upon you that you are part of a relatively large community of people who will look much like you to a mathematician - see for example the questions Handling unsolicited proofs of famous mathematical problems and I believe I have solved a famous open problem. How do I convince people in the field that I am not a crank? on this site, which give a good impression of the volume of similar requests your work is likely to be embedded in. Again, this is not to discourage you, but to encourage you to think carefully, and take your time over, how you engage with professional mathematicians you are asking to review your work. If nothing else, make sure you read and mull over all the answers on both threads.

That said, when you do communicate your findings to outsiders, you are justified in seeking protection for your work so it isn't later claimed by someone else as their own. I would generally advise you to take it easy on such protections: your main problem is overwhelmingly more likely to be getting mathematicians to take your manuscript seriously, not defending it from theft.

In that regard, the best defence I can think of is to make it publicly available, as widely as possible, under your real name. This can include posting your manuscript to the arXiv if you can post there, to viXra as an alternative, or to sites like MathOverflow or Math Stack Exchange. For good measure, if you post on Stack Exchange, you might want to ensure that your post is archived on the Wayback Machine. It's important to note that even then, your work is not "safe" in that someone else could, in principle, take that work and submit it as their own to a journal.

However, this is academic misconduct of pretty much the highest order, and if that were to happen you should contact the journal editor and the dean of the author's institution with proof (like your MathOverflow post!) that you are the original author of the unattributed work. That is immediate grounds for an investigation which can result in retraction of the paper and severe academic sanctions against that author. If it ever comes to that.

It is also important to note that, regardless of whether your work is safe or not, it may or may not be appropriate to make such a request of MO or MSE. In particular, the threads Using Math Overflow to check whether or not a proof is correct, On discussion of published papers at MO, and Appropriate or not: “To what extent are the results in Paper X correct?” indicate that such a request would be considered off-topic at MathOverflow. To tie this in with my initial point, posting review requests in inappropriate venues is a good way to quickly exhaust the goodwill of the mathematical community and make it much harder for your work to receive appropriate vetting even if it deserves it.

So what should you do? I would start with this advice.

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    This is a very good answer (and similar to mine, which I wrote rather slowly). I want to point out one thing: "It's important to note that even then, your work is not "safe" in that someone else could, in principle, take that work and submit it as their own to a journal." You're not wrong, but I think it's even more important to note that all mathematical work is not "safe" in this sense. Already published work, including of establishing and famous mathematicians, can also be improperly appropriated and published in this way...and in fact I think that kind of theft is more common. Commented Jan 11, 2016 at 17:09
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    I would actually advice against uploading to viXra. To many, that would be a signal that the author did not want to do the minimal amount of work required to be able to upload to arXiv instead (even if this is not true). Commented Jan 11, 2016 at 17:54
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    I disagree strongly that the OP would be justified in their worry, as long as they actually put some thought into their choice of person to contact. The worry might seem justified by someone from the outside, but that does not make it so. Commented Jan 11, 2016 at 18:44
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    @TobiasKildetoft I agree that it is highly unlikely that a potential endorser would steal work sent for such purposes. However, you cannot fault an outsider for considering that unsafe (even if it probably isn't). In any case, saying that posting on the arXiv requires minimal work is disingenuous at best.
    – E.P.
    Commented Jan 11, 2016 at 18:49
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    @TobiasKildetoft I'm not sure at all that encouraging such people to take that step lightly is at all helpful. (I wonder, for example, if you'd advise people as nonchalantly to send unsolicited email if you yourself received a significant volume of such emails on a regular basis.) Pressing 'send' is easy; it's getting the email right that we should be advising people to do carefully (which Kaveh and Pete Clark have done well). Simply put: I disagree with you. But we should probably leave it at that.
    – E.P.
    Commented Jan 11, 2016 at 19:16
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If you say you have found a completely new elementary proof of a famous theorem, you instantly put yourself into the 'nutcase' box until you can prove otherwise (or unless you have already proved otherwise). Posting on MathOverflow is a good step to additonally move into the 'nuisance' box as well. Even if you are right, you have not attached your name to the proof in any formal way, so someone could steal it. Probably the route that is most likely to win you acceptance within the mathematical community is to find someone at a university or similar who is willing to mentor you, and don't conclude your proof is correct until you can actually convince another mathematician it is correct. If it really is elementary then that shouldn't prove so difficult.

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    "If you say you have found a completely new elementary proof of a famous theorem, you instantly put yourself into the 'nutcase' box until you can prove otherwise" That seems harsh to me. E.g. 'There are infinitely many prime numbers 'is a (very) famous theorem, and completely new elementary proofs are often found. "Even if you are right, you have not attached your name to the proof in any formal way, so someone could steal it." I really don't agree with that: if you post the question under your real name, then you are identified as the author. I don't see what formality has to do with it. Commented Jan 11, 2016 at 16:25
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    @PeteL.Clark Ok, yes, you're right. I took the question to mean an elementary proof of a result that doesn't currently have one. The question does suggest the intention is to publish in a journal, which would not be a realistic option if many elementary proofs exist. Posting under your real name would attach your name to it, but there's no system to guarantee who chose the name. It might sound silly to wrongly give credit to someone else for a right result, but could you similarly post poor-quality work using someone's name?
    – Jessica B
    Commented Jan 11, 2016 at 17:12
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    The line "don't conclude your proof is correct until you can actually convince another mathematician it is correct. If it really is elementary then that shouldn't prove so difficult." is pure gold. Commented Jan 11, 2016 at 18:13
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    "Posting under your real name would attach your name to it, but there's no system to guarantee who chose the name." I'm not sure I completely understood this. There's no system to guarantee that the names appearing in most published papers are not completely made up (and every once in a while, they are); institutional affiliations are not always required and rarely vetted. Anyway, if the identity cannot be verified, then the post itself would be cited by any mathematician using the work. I find the idea that people can steal your ideas if you don't present them "formally" quite bizarre. Commented Jan 12, 2016 at 1:04
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    @JBentley: "So you're saying I can steal someone's idea, post it on Stack Exchange under my real name, and I'm identified as the author?" No. "I don't think so." OK, good. In case it is necessary, let me say that you should not try to steal someone else's mathematical idea. This will likely work out badly for you: it could be the end of your mathematical career. By the way, I have several times used postings of mine and others math.SE and mathoverflow.net in my later published papers. I have never had any problems. If you have different experiences, please let me know. Commented Jan 12, 2016 at 1:12

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