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Zerox
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9 votes
1 answer
387 views

An Explicit Solution to $a^2+b^2=p$

8 votes
1 answer
114 views

Stable differential structure

7 votes
0 answers
284 views

Infinite-dimensional algebraic objects

4 votes
0 answers
90 views

Isometric groups of Riemann manifolds

4 votes
0 answers
78 views

"Cogeodesations" on complete Riemann manifolds

4 votes
0 answers
98 views

A combinatorial question for divergent sequences

4 votes
1 answer
65 views

Is self homotopy equivalence close to self homeomorphism?

3 votes
0 answers
53 views

Closed Hilbert half-space

3 votes
1 answer
148 views

Metric on $\Bbb{R}$

3 votes
1 answer
133 views

Poincaré conjecture on infinite dimension

2 votes
0 answers
218 views

Geodesics in Lie group

2 votes
1 answer
230 views

Cauchy completeness of an ordered field

2 votes
1 answer
44 views

Geodesic orthocenter

2 votes
0 answers
72 views

A closed-form for $\sum_{n=1}^{+\infty}(1-\operatorname{sinc}(n^{-1}))$

2 votes
1 answer
119 views

Skew fields with nonzero characteristic

2 votes
2 answers
272 views

Definition of weak homotopy equivalence

2 votes
1 answer
84 views

A collection of smooth manifolds with intersection property

2 votes
0 answers
63 views

An infinitesimal generator of fractional derivatives and integrals

2 votes
0 answers
103 views

Polynomials in Banach spaces

2 votes
1 answer
147 views

Topological classification of complex surfaces

1 vote
1 answer
68 views

Topological description for graph minors

1 vote
1 answer
75 views

Convergence on sum of sequence

1 vote
1 answer
102 views

A Proof about $Aut(\Bbb{C})$ and Schwarz Lemma

1 vote
0 answers
77 views

A 'Dense' Infinite Sum

1 vote
1 answer
68 views

Fields Having Algebraic Numbers as Subfield

1 vote
0 answers
158 views

A Partial Integral Equation

1 vote
1 answer
33 views

What could differential operator be?

1 vote
1 answer
736 views

Automorphism of Riemann Sphere

1 vote
1 answer
76 views

Given three general lines in $\Bbb{R}^3$, can we construct the center and median plane of the one-sheet hyperboloid they determine?

1 vote
0 answers
129 views

Blow up points on real projective plane