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skyking
  • Member for 8 years, 8 months
  • Last seen more than a week ago
14 votes
1 answer
583 views

Can $10101\dots1$ be a perfect square in any base?

6 votes
1 answer
233 views

Are numbers in which all substrings are primes finite regardless of base?

4 votes
1 answer
226 views

Does the reverse of Picard's great theorem hold?

2 votes
0 answers
39 views

Is there a name for local connectedness except you use punctured neigborhoods instead?

2 votes
0 answers
222 views

Is there a generalization of the Kelly criterion where we add a fixed income/cost?

2 votes
3 answers
98 views

Is there a set $A$ such that $|\mathbb Z|<|A|<|\mathbb R|$ is undecidable?

2 votes
0 answers
47 views

Can one make $\sin nx=I$ for all $n\ne 0$

2 votes
1 answer
144 views

Is there an (english) term for a digit to the right of the decimal separator?

1 vote
0 answers
13 views

When can the order of boolean operations be exchanged? Is there an easier way?

1 vote
1 answer
91 views

Is there a name for the partial order of metrics defined by induced topology subset.

0 votes
1 answer
161 views

Can Jordan curve theorem be generalized to allow non-Jordan curves?

0 votes
2 answers
101 views

Are there groups except differing right and left inverse.

0 votes
1 answer
60 views

Is this an equivalent definition of limits in perfect Hausdorff spaces?

0 votes
1 answer
46 views

What are these generalizations of planes called?

0 votes
0 answers
15 views

Electric field round a rectangular conductive plate