# Tagged Questions

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29 views

### How to calculate a sequence in Maple [on hold]

Please how can I using Maple obtain the following sequence defined successively $$X_1=1,\quad X_k=\Big(\frac{1/k+\sum_{i+j=k}X_i X_j}{k^2}\Big)^{1/2}$$ here $i,j,k\in\mathbb {N}$ i wish to have ...
145 views

### Is the ISC kaput [closed]

The very useful Inverse Symbolic Calculator is showing me this What's up? multiple choice (a) No, it's fine at that address: idiot Edgar did something wrong... (b) It is off-line at that ...
350 views

### Inequality in information theory

I am reading the paper "chain independence and common information" (http://ttic.uchicago.edu/~yury/papers/independ.pdf). In this paper, an inequality is used several times (without proof) which looks ...
767 views

### Where to look for corrections of papers?

When I start reading a paper, is there some easy way to find a list of corrections for that paper? For example, it happens occasionally that some result of a paper turns out to be wrong, or at least ...
2k views

### What does a mathematician expect from mathematics education? [closed]

Consider that my question is not a personal and/or subjective question. Perhaps, you have hired a mathematics educator in your department and you are interested in finding a way to communicate with ...
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### How would you cite a result that it is not quite correct, but whose proof contains some useful ideas

There is a paper that was published 15 years ago; one of the theorems in it is wrong in general. A few years ago some people told the author that this theorem is wrong as stated, but yet a partial ...
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### Tools for long-distance collaboration

Background In general, I am aware of four and a half methods of long-distance collaboration: Telephone (including voice-chat, VOIP, etc.; anything that is voice based) Text chat (chat room, IM, ...
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Are there math journals that are aimed for undergraduates? I don't mean here journals where students can publish their papers, but journals that publish introductory articles that an undergraduate can ...
12k views

### Refereeing a Paper [closed]

I've refereed at least a dozen papers in my (short) career so far and I still find the process completely baffling. I'm wondering what is actually expected and what people tend to do... Some things ...
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### Non-English language Mathematical podcasts/audio

Following on from this question, does anyone know of any good quality non-English language mathematical podcasts? I'm particularly interested in anything relating to the history of mathematics. I'm ...
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### Are there other nice math books close to the style of Tristan Needham?

Hello, I've been very positively impressed by Tristan Needham's book "Visual Complex Analysis", a very original and atypical mathematics book which is more oriented to helping intuition and insight ...
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### What is the difference between the biconditional iff. and equality = ?

Hello, I've been used to writing logical transformations using equality, but the other day it struck me that perhaps I should be using the biconditional $\iff$? So my question is: What is the ...
2k views

### How to know if somebody else is also working on your problem?

Once you have spotted a mathematical problem that (presumably) fits your degree of expertise, whether you are a phd student or an established professor, you have to deal with the following non ...
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### Why are the Dynkin diagrams E6, E7 and E8 always drawn the way they are drawn?

The Dynkin diagrams of type ADE are ubiquitous in mathematics as solutions of various classification problems. The diagram E6 is usually drawn by five dots in a row with a sixth dot above the third, ...
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### Is a free alternative to MathSciNet possible?

How could a free (i.e. free content) alternative for MathSciNet and Zentralblatt be created? Comments Some mathematicians have stopped writing reviews for MathSciNet because they feel their ...
19k views

### Which math paper maximizes the ratio (importance)/(length)?

My vote would be Milnor's 7-page paper "On manifolds homeomorphic to the 7-sphere", in Vol. 64 of Annals of Math. For those who have not read it, he explicitly constructs smooth 7-manifolds which are ...
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### On the proofs (and disproofs) of Riemann Hypothesis [closed]

As anyone who follows the arxiv, I notice every now and then "proofs" and "disproofs" of Riemann Hypothesis. I looked on several such articles, and it seemed to me quite nonsense, but I didn't make ...
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### Is it best to run or walk in the rain? [closed]

According to the Norwegian meterological institute, the answer is that it is best to run. According to Mythbusters (quoted in the comments to that article), the answer is that it is best to walk. My ...
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### Beamer hints and tips [closed]

I deleted a rant from this question because I felt it detracted from the given answer to the specific question. However, beamer is the "new kid on the block" in terms of giving talks (not that new!) ...
6k views

### What's so great about blackboards? [closed]

Many mathematicians seem to think that the only way to give a mathematics talk is by using chalk on a blackboard. To some, even using a whiteboard is heresy. And we Don't Talk About Computers. I'd ...
6k views

### Blackboard rendering of math fonts

I learned most of my math font rendering from watching others (for example, I draw ζ terribly). In most cases it is passable, but I'm often uncomfortable using fonts like Fraktur on the board. ...
15k views

### Tools for collaborative paper-writing

I personally use a revision control system (git) to manage my own paper writing, back things up, and synchronize between different machines. However, I've found most programmer's revision control ...