Stack Exchange

usul

top accounts reputation activity bookmarks subscriptions
Top Questions
57 votes

Why doesn't Cantor's diagonal argument also apply to natural numbers?

analysis elementary-set-theory asked Apr 26, 2011 at 0:29
math.stackexchange.com

36 votes

"Scaled $L^p$ norm" and geometric mean

measure-theory lp-spaces asked Jan 19, 2013 at 21:10
math.stackexchange.com

28 votes

How strong is this conjecture? $(Z/nZ)^*$ is generated by "small" elements

nt.number-theory reference-request gr.group-theory computational-complexity riemann-hypothesis asked May 11, 2014 at 1:50
mathoverflow.net

26 votes

Precise definition of "weaker" and "stronger"?

logic terminology definition asked Jul 25, 2011 at 17:38
math.stackexchange.com

22 votes

How to prove Chebyshev's result: $\sum_{p\leq n} \frac{\log p}{p} \sim\log n $ as $n\to\infty$?

sequences-and-series number-theory prime-numbers analytic-number-theory asked Apr 20, 2011 at 2:38
math.stackexchange.com

22 votes

Space of probability measures "complete"? (In the other sense)

analysis measure-theory asked Jan 31, 2013 at 18:02
math.stackexchange.com

21 votes

Is $e^x$ the only isomorphism between the groups $(\mathbb{R},+)$ and $(\mathbb{R}_{> 0},*)$?

group-theory group-isomorphism asked Feb 13, 2013 at 16:34
math.stackexchange.com

18 votes

What's harder: Shuffling a sorted deck or sorting a shuffled one?

algorithms algorithm-analysis information-theory permutations entropy asked Apr 14, 2013 at 3:49
cs.stackexchange.com

13 votes

Do we have any nontrivial uniform circuits?

cc.complexity-theory circuit-complexity uniformity asked Jun 6, 2014 at 7:01
cstheory.stackexchange.com

11 votes

Bayesian Inference in Measure Theory

measure-theory reference-request probability-theory bayesian asked Jan 25, 2013 at 21:35
math.stackexchange.com

1 2 3 4

Top Answers
73
Why do roots of polynomials tend to have absolute value close to 1?
mathoverflow.net

56
How to deal with low-probability high-impact risks?
security.stackexchange.com

47
What exactly (and precisely) is "hash?"
cs.stackexchange.com

39
Pressure to defend the relevance of one's area of mathematics
mathoverflow.net

35
How does Asimov's second law deal with contradictory orders from different people?
scifi.stackexchange.com

32
What is the most useful non-existing object of your field?
mathoverflow.net

32
How to create better user account creation experience for customers who do not want to create an account
ux.stackexchange.com

31
Examples of intuition from fields other than Physics to solve math problems
mathoverflow.net

26
Why do computer-science majors learn calculus?
cseducators.stackexchange.com

25
Explain why "Who is she playing the piano?" is incorrect
ell.stackexchange.com

25
Is the open question NP=co-NP the same as P=NP?
cs.stackexchange.com

22
Did Alan Turing's student Robin Gandy assert that Charles Babbage had no notion of a universal computing machine?
cstheory.stackexchange.com

22
Implications of proving NP=RP on complexity theory
cstheory.stackexchange.com

20
Examples of successful derandomization from BPP to P
cstheory.stackexchange.com

20
What does "Scientists rise up against statistical significance" mean? (Comment in Nature)
stats.stackexchange.com

19
What is a naive method?
cs.stackexchange.com

18
Is BPP vs. P a real problem after we know BPP lies in P/poly?
cstheory.stackexchange.com

18
Why are review articles cited more frequently than original research articles?
academia.stackexchange.com

16
Suppose $\mathbf{P} = \mathbf{BQP}$. Then what is randomness? Would it even exist at all?
cstheory.stackexchange.com

15
Possible definitions of exponential function
math.stackexchange.com

15
Does forcing TMs to change all symbols they read change their power?
cs.stackexchange.com

15
information-theoretic derivation of the prime number theorem
mathoverflow.net

15
Why is the clique problem NP-complete?
cs.stackexchange.com

15
What is a natural problem in theory of computation?
cstheory.stackexchange.com

15
How to deal with professors who don't follow the text
academia.stackexchange.com

14
Differences and relationships between randomized and nondeterministic algorithms?
cs.stackexchange.com

14
Showing "this is secure" on credit card entry screen
ux.stackexchange.com

13
Is every algorithm's complexity $\Omega(1)$ and $O(\infty)$?
cs.stackexchange.com

13
Why is this argument for $P\neq NP$ wrong?
cs.stackexchange.com

12
NP Problems with unique solution
cs.stackexchange.com

1 2 3 4