313

Answers
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28
Is Thompson’s Group F amenable?
16
Noteworthy achievements in and around 2010?
3
Examples of prime numbers in nature
19
Submission of a paper with a serious error to a good journal
4
Status of Harvey Friedman’s grand conjecture?
6
Is all ordinary mathematics contained in high school mathematics?
11
Are some numbers more irrational than others?
7
Why aren’t representations of monoids studied so much?
14
Early Two-Author Math Papers
1
Examples of non-abelian groups arising in nature without any natural action
4
Who first proved that the value of C/d is independent of the choice of circle?
9
Examples of theorems with proofs that have dramatically improved over time
3
Subgroups of a finite abelian group
11
The free group $F_2$ has index 12 in SL(2,$\mathbb{Z}$)
2
triple with large LCM
2
Why semigroups could be important?
7
Solubility of the quintic?
4
Is every locally connected subset of Euclidean space R^n locally path connected ?
3
Can an algebraic number on the unit circle have a conjugate with absolute value different from 1?
3
Are there results in “Digit Theory”?
8
Is there a simple proof that a group of linear growth is quasi-isometric to Z?
10
fgf = f, gfg = g, fg not necessarily identity, what was that called?
10
Generalizing Euclid’s proof of the infinity of primes
3
Integer matrices with no integer eigenvalues
7
Zero divisor conjecture for finite fields
7
Does $S_4$ inject into $SL(2,R)$ for some commutative ring $R$?
19
When is a finitely generated group finitely presented?
5
When is $\ker AB = \ker A + \ker B$?
8
Trees in groups of exponential growth
4
Applications of group theory to math. biology (pharmacology) ?
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