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# Questions

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11
1
360
views

### Possible isometries of a positively curved $S^2\times S^2$

may 1 at 16:27 Luis Guijarro 413

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8
0
232
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### “Homogeneity” of the Hopf fibration $S^7\to S^{15}\to S^8$ [closed]

nov 29 at 2:16 Renato G Bettiol 2,070512

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8
3
287
views

### Characterizing Hessians among symmetric bilinear tensors

mar 7 at 16:10 Robert Bryant 21.7k37597

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7
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641
views

### First eigenvalue of the Laplacian on Berger spheres

jun 19 11 at 22:27 Renato G Bettiol 2,070512

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7
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417
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### Behavior of sectional curvature under metric deformations

jan 16 12 at 5:12 Renato G Bettiol 2,070512

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6
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155
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### Hamiltonian polar action with Lagrangian section

dec 17 at 1:53 Robert Bryant 21.7k37597

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4
1
192
views

### Symmetries vs. Bound in codimension of Nash isometric embedding

feb 1 12 at 16:59 Renato G Bettiol 2,070512

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195
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### Minimal distance spheres in complex projective spaces

aug 23 at 17:36 Greg Kuperberg 36.2k2116179

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4
1
219
views

### Open problems about CMC hypersurfaces with symmetries?

oct 4 at 2:55 Renato G Bettiol 2,070512

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