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xavierm02
  • Member for 12 years, 11 months
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16 votes
2 answers
2k views

When does it hold that $\int_{0}^{x} fg=\left(\int_{0}^{x} f\right)\left(\int_0^x g\right)$

9 votes
2 answers
278 views

Is there a ring so that any two distinct non-zero elements do not commute?

5 votes
1 answer
448 views

Terminal objects of the category of morphisms

5 votes
3 answers
2k views

How do we find specific values of sin and cos given the series definition

4 votes
1 answer
132 views

Recursive factorization of words

4 votes
1 answer
106 views

Can all linear code be adapted so that the first bits of the encoded message are the bits from the original message?

2 votes
3 answers
78 views

Name for $X^\infty=\bigcup\limits_{k=0}^\infty X^k$

2 votes
1 answer
480 views

Is there an (explicit?) bijection from the set of all automatons to the set of all regular expressions preserving the recognised language

2 votes
1 answer
264 views

Can a subset of $\Bbb R^n$ have an infinite symmetric group

2 votes
1 answer
37 views

Computing determinants using derivatives in an arbitrary field

2 votes
1 answer
298 views

Canonical representation of finite field

1 vote
1 answer
58 views

What can we say about generating subsets if all free subsets are finite

0 votes
1 answer
1k views

Sequence of functions $f_n$ so that $\forall g \in C^0\left(\Bbb R,\Bbb R\right),\exists n \in \mathbb{N}, \cfrac{g}{f_n}$ is bounded

0 votes
1 answer
101 views

Isometry from $\ell^1$ to $\ell^\infty$