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Mirko
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4 votes
0 answers
112 views

Find at least one square-boxed subcontinuum

2 votes
0 answers
156 views

Are there hereditarily square-boxed plane continua?

6 votes
0 answers
427 views

Are there always at least *five* divisions?

3 votes
4 answers
902 views

Is there a compact connected Hausdorff space in which every non-empty $G_\delta$ set has non-empty interior?

10 votes
1 answer
339 views

A forked plane continuum

17 votes
2 answers
1k views

Who first defined _simply connected_, reference?

10 votes
3 answers
2k views

Could a perfect squared square be split into two perfect squared squares?

14 votes
3 answers
1k views

Order homomorphism functions on $\omega_1$