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Adterram's user avatar
Adterram
  • Member for 12 years, 8 months
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11 votes
3 answers
1k views

How to define the square root of $1-\Delta $?

10 votes
1 answer
1k views

The properness of a submersion

7 votes
1 answer
341 views

3-dimensional h-cobordisms

7 votes
1 answer
212 views

Existence of normal and harmonic coordinates around a point

6 votes
1 answer
246 views

Contractible 4-manifold with an exhaustion

5 votes
1 answer
5k views

What is the usual topology of $C^\infty_c(M) $

4 votes
2 answers
1k views

The orientation-preserving diffeomorphism of $\mathbb R^n$

4 votes
3 answers
813 views

Field with cyclic product group

4 votes
0 answers
297 views

Finite subgroup of $\mathrm{SO}(4)$ which acts freely on $\mathbb{S}^3$

4 votes
1 answer
98 views

Does codimension-1 collapsing with bounded curvature have boundary?

3 votes
1 answer
305 views

The distribution of roots of elliptic polynomial

3 votes
0 answers
205 views

Complex manifold with conjugate complex structure

3 votes
0 answers
105 views

Crepant resolution of quotient singularities

3 votes
2 answers
2k views

The extension of smooth function

3 votes
0 answers
47 views

Does local reducibility imply global reducibility of universal covering?

3 votes
0 answers
53 views

Complex structures compatible with a symplectic toric manifold

3 votes
1 answer
276 views

Image of the moment map

2 votes
1 answer
158 views

Is a simple J-holomorphic curve injective everywhere except for finitely many points?

2 votes
4 answers
3k views

Finitely generated subgroup [closed]

2 votes
0 answers
73 views

Control of the Hessian of the distance function at infinity

2 votes
3 answers
933 views

The topology of $C_0^\infty(M) $

2 votes
0 answers
2k views

Is the boundary of the orientable manifold orientable? [closed]

2 votes
0 answers
81 views

Positivity of the intersection form [closed]

2 votes
1 answer
106 views

1-convex and holomorphically convex

2 votes
0 answers
82 views

Abelian subgroup of the automorphism group of $\mathbb C^n$

2 votes
0 answers
40 views

Regularity of the distance function to a compact set in an Alexandrov space

2 votes
0 answers
46 views

Topology of compact Alexandrov spaces with nonnegative curvature

2 votes
2 answers
135 views

Toponogov's theorem in the Alexandrov space with respect to a compact set

1 vote
1 answer
163 views

Classification of the group action

1 vote
1 answer
74 views

Surface in a product domain