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Zaragosa
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7 votes
2 answers
368 views

Kneser theorem about the Klein bottle

5 votes
2 answers
169 views

Rozendorn's Article

4 votes
1 answer
294 views

A local isometric immersion from $\mathbb H^{n}$ into $\mathbb R^{2n-1}$

3 votes
0 answers
289 views

Isometric immersion of $\mathbb H^2$ into $\mathbb R^\infty$ built by Bieberbach

3 votes
0 answers
173 views

Immersion of a part of the hyperbolic plane in $\mathbb{R}^3$

2 votes
0 answers
114 views

The best applications of the Poincaré-Bendixson theorem [closed]

1 vote
0 answers
121 views

Denjoy example in the Poincaré–Bendixson theorem

1 vote
0 answers
55 views

Generalizing an application of the Poincaré-Bendixson theorem

1 vote
0 answers
103 views

The best lower bound for isometric immersions

1 vote
0 answers
260 views

Question in the proof of Hilbert's theorem

0 votes
1 answer
159 views

$f_\epsilon=\inf\{f(y):|y-x|<\epsilon\}$ is measurable Borel [closed]