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wlad
  • Member for 9 years, 2 months
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22 votes
1 answer
654 views

Can $e^x$ be expressed as a linear combination of $(1 + \frac x n)^n$?

11 votes
3 answers
589 views

Why is something not a field if it's a proper class?

9 votes
1 answer
217 views

Why does the plot of the legendre symbol of $x^2 - y^2$ over a finite field look rectangular

9 votes
2 answers
333 views

Why intuitively do the quaternions satisfy the mixture of geometric and algebraic properties that they do?

8 votes
2 answers
260 views

Does every equation involving $+,-,\times,\div,\sqrt{},\mathbb Q$ only have solutions in the algebraic numbers

6 votes
2 answers
186 views

Alternative way to count the number of solutions to the equation $x^2 + y^2 = -1$ over $\Bbb Z /p$

6 votes
1 answer
173 views

$\epsilon \otimes 1 + 1 \otimes \epsilon$ is a nilcube in $\mathbb R[\epsilon] \otimes \mathbb R[\epsilon]$. What does that mean intuitively?

6 votes
1 answer
105 views

What's the groupification of the cardinal numbers (without using AC)?

5 votes
1 answer
316 views

Are the quaternions Morita equivalent to the real numbers?

5 votes
0 answers
2k views

Is there a quicker way to generate integers which are hard to factor than multiplying two large primes?

4 votes
2 answers
136 views

Find a complicated determinant

4 votes
0 answers
119 views

Distribution of monochromatic edge counts in 2-colored square lattices

4 votes
1 answer
147 views

Euler's proof that $\lim_{n\to\infty} (1 + \frac x n)^n = \sum_{k=0}^n \frac{x^k}{k!}$, but over matrices and complex numbers

4 votes
2 answers
694 views

Is the gamma function expressible as a proper integral?

4 votes
3 answers
228 views

Applications of uncountability of the real numbers

3 votes
0 answers
50 views

Do there exist theorems of de Sitter geometry, just as there are theorems of Minkowski and anti-de Sitter geometry?

3 votes
1 answer
220 views

Are Wikipedia and Wolfram Mathworld wrong about the CDF of the beta binomial?

3 votes
1 answer
2k views

Is finding generators of finite fields hard?

3 votes
1 answer
233 views

Is the Legendre symbol with respect to a large prime usable as a pseudorandom generator?

3 votes
1 answer
81 views

Are there any applications of checksums and/or cryptographic hash functions in pure mathematics?

3 votes
0 answers
47 views

If G has a KAK decomposition then does TG have a KAK decomposition?

2 votes
0 answers
47 views

How much novelty is there in spectral theory over Clifford algebras?

2 votes
1 answer
86 views

Lie Sphere Geometry, but with continuously oriented cycles

2 votes
0 answers
42 views

The exact relationship between non-Euclidean Laguerre geometries and the planar algebras

2 votes
1 answer
29 views

If a finite-rank free module is over a ring with IBN, can all linearly independent sets be extended to bases?

2 votes
1 answer
66 views

In the axioms of a coalgebra, does the *naturalness* of the isomorphisms play any role?

2 votes
1 answer
61 views

Is there a term for something computable with small backwards error?

2 votes
0 answers
63 views

What is the rigorous definition of a cycle in non-Euclidean geometries?

2 votes
2 answers
55 views

How many quadratic non-residues are there in the image of $f(a) = a^2 - x^2$?

2 votes
1 answer
323 views

Characterize all finite unital rings with only zero divisors