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whacka
  • Member for 8 years
  • Last seen more than 6 years ago
85 votes
Accepted

Functions that are their own inverse.

37 votes
Accepted

Why this $\sigma \pi \sigma^{-1}$ keeps appearing in my group theory book? (cycle decomposition)

32 votes

Universal cover via paths vs. ad hoc constructions

24 votes
Accepted

Proving the Riemann Hypothesis and Impact on Cryptography

21 votes

Automorphism group of direct product of groups

19 votes

Why does the sign have to be flipped in this inequality?

14 votes
Accepted

Is it possible to construct a field larger than the complex numbers?

13 votes
Accepted

What do the zero's of L-functions entail?

13 votes

Is a group uniquely determined by the sets {ab,ba} for each pair of elements a and b?

13 votes

How could the Collatz conjecture possibly be undecidable?

10 votes
Accepted

Is there ANY possible way to solve this equation?

10 votes
Accepted

Do we need transpose in the definition of a dual representation?

10 votes

Understanding Braid Groups

10 votes

Does every infinite field contain a countably infinite subfield?

10 votes

Are there any bases which represent all rationals in a finite number of digits?

10 votes

About G-Sets (or group actions).

10 votes
Accepted

Intuitively, why does Bayes' theorem work?

9 votes
Accepted

How to find irreducible representations of $\mathbb{C}S_2$ and $\mathbb{C}S_3$

9 votes
Accepted

Dense subsets of an infinite set in the cofinite topology

9 votes
Accepted

Union of all finite cyclic groups

8 votes
Accepted

Subspaces of a tensor product of vector spaces

8 votes

The Riemann Sphere Interpretation

8 votes
Accepted

How can I use these two bijections to form a bijection $\mathbb{R}^{\mathbb{N}} \to \mathbb{R}$?

8 votes

Inverse Limits in Galois Theory

8 votes
Accepted

Is the convolution operation some kind of group operation?

8 votes
Accepted

Why is $\mathbb{Z}[1/p]$ the direct limit of $\mathbb{Z}\xrightarrow{p}\mathbb{Z}\xrightarrow{p}\mathbb{Z}\to...$?

7 votes
Accepted

Why is $\frac{1}{x} \sum_{n=1}^x \ln (n) \sim \ln(x) - \gamma$

7 votes
Accepted

Cosh and Sinh analogs

7 votes
Accepted

What does it means to multiply a permutation by a cycle? $\pi(x_1\cdots x_n)\pi^{-1}=(\pi(x_1)\cdots\pi(x_n))$

7 votes

The series $\sum_{n=1}^\infty\frac1n$ diverges!

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