## Hot answers tagged math-communication

155

I can't believe no one's mentioned this:
Some title containing the words "homotopy" and "symplectic", e.g. this one
Pavol Severa
arXiv:math/0105080

144

A natural choice is Riemann's "On the Number of Primes Less Than a Given Magnitude" at only 8 pages long...
http://en.wikipedia.org/wiki/On_the_Number_of_Primes_Less_Than_a_Given_Magnitude

141

In my experience, mathematicians will frequently argue (in general, not just in mathematics) by passing to an extreme case at the beginning. Non-mathematicians (again in my experience) sometimes object to such a mode of argument as invalid or irrelevant because such extreme hypotheticals are clearly unrealistic.
I think that the mathematical idea of ...

126

Since people seem to be pussyfooting around the obvious:

113

The flattering lie You Could Have Invented Spectral Sequences by Timothy Y. Chow.

100

A minus sign that used to annoy me but now I know why it is there by Peter Tingley.

100

One that comes immediately to mind is Can one hear the shape of a drum?

99

I find there is a world of difference between explaining things to a colleague, and explaining things to a close collaborator. With the latter, one really can communicate at the intuitive level, because one already has a reasonable idea of what the other person's mental model of the problem is. In some ways, I find that throwing out things to a ...

95

Everyone I know in the AMS would like to make MR/MathSci free, but the problem is that it costs millions of dollars to produce and maintain (it requires a large staff in Ann Arbor and elsewhere, including many mathematicians), and no one has managed to find any other way to pay for it*. This is certainly something the mathematicians in the AMS are aware of ...

87

Mark Van Raamsdonk's Princeton PhD thesis in string theory was called "Making the most out of zero branes and a weak background". Priceless.
http://adsabs.harvard.edu/abs/2000PhDT........40V

85

John Nash's "Equilibrium Points in n-Person Games" is only about a page and is one of the most important papers in game theory.

78

I've been spending a fair amount of time editing a journal this year, and it's pretty
amazing what different people think of as a "referee report". The first thing you should
keep in mind is that the editors will be incredibly appreciative if you
look at the paper in detail and send in comments in a timely manner, whatever
the comments are. In my mind ...

77

Final addition:
Since I've produced many rambles, I thought I'd close my (anti-)contribution with a distilled version of the example I've attempted below. It's still something very standard, but, I hope, in the spirit of the original question. I'll describe it as if it were a personal thing.
Almost always, I think of an integer as a function of the ...

73

Here are some that came to mind:
Equivalence. Basically, the idea that two things can be functionally equivalent (or close to equivalent) even if they look very different (and conversely, that two things can be superficially similar but functionally quite distinct). For instance, paying off a credit card at 10% is equivalent (as a first approximation, at ...

67

be self-critical. Recognize that constantly questioning one's own arguments, and those of authority figures, far from being corrosive or disrespectful, is the best way to strengthen those arguments.

67

John Stallings' "How not to prove the Poincare Conjecture" is lovely.

67

It's not a paper, and it's not groundbreaking, but it's short!
A One-Sentence Proof That Every Prime $p\equiv 1\pmod 4$ Is a Sum of Two Squares
D. Zagier
The American Mathematical Monthly, Vol. 97, No. 2 (Feb., 1990), p. 144
http://www.jstor.org/pss/2323918

66

I get this nominee from Halmos...
E. Nelson, "A Proof of Liouville's Theorem", Proc. Amer. Math. Soc. 12 (1961) 995
9 lines long. Not the shortest paper ever, but maximizes importance/length ...
http://www.jstor.org/stable/2034412

63

This is really just an extension of James D. Taylor's comment on the question, but recognizing the value of definitions, and the inherent ambiguity without them, is ridiculously helpful.
Define your terms!
I recently saw a talk on how to teach students to write mathematics well. The advice "think like a lawyer" was given, which I totally agree with when ...

62

Given the atmosphere of terror and fear in recent years, I did a double take when I first glanced at Bruce Berndt's paper "Ramanujan's association with radicals in India".

60

H. Lebesgue, Sur une généralisation de l’intégrale déﬁnie, Ac. Sci. C.R. 132 (1901), 1025–
1028.
The beginning of measure theory as we know it, and a very short paper.

56

Paul Cohen's paper "The independence of the continuum hypothesis" in which he introduced forcing. Six pages long (and another six in the second paper, a year later) that completely changed logic and set theory.
JSTOR access (may require a paywall)
While I'm at it, two more in set theory:
Kurt Goedel's proof of the consistency of the continuum hypothesis ...

55

I think your question is so important as to deserve multiple answers, even if there is a good deal of overlap among them. (Indeed, overlap indicates that various respondents feel the same way about something, which is important.) So:
1) Should you summarize the main results and or the argument? If so, how much is a good amount? What purpose does this ...

51

The first priority is to state your main results and explain why they are interesting (e.g. how they fit in with related work). With only 15 minutes you do not have much time to discuss proofs, but it is nice to give a brief outline of the proof of your main result and what is involved.
As a first-time presenter, I would watch out for the following:
...

51

And in the graph theory corner we have the famous Harary/Read paper "Is the null-graph a pointless concept?"

47

"On $O_n$" by D.E. Evans. ($\mathcal{O_n}$ is notation Cuntz gave for the algebras he introduced in "Simple $C^*$-algebras generated by isometries".)

46

Just to talk about something fresh for which I still have a good memory of what I actually thought and what I wrote, let's take this example
Thoughts:
1) Ivan Fesenko teased me with the puzzle without the gradient condition 10 years ago. I solved it with the standard $(1-xy)^2+x^2$, but it would be nice to tease him with the upgraded puzzle when I talk to ...

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