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happymath
  • Member for 10 years
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  • India
33 votes
4 answers
24k views

How to find continued fraction of pi

15 votes
2 answers
3k views

Applications of Eckmann–Hilton argument

13 votes
1 answer
541 views

Proving that the number of integer solutions of $x^2-Ny^2=1$ is infinite

13 votes
1 answer
753 views

Can intersection of two manifolds be $xy=0$

12 votes
2 answers
2k views

Importance of the zero free region of Riemann zeta function

8 votes
2 answers
241 views

On the philosophy of Category Theory

7 votes
1 answer
607 views

Proving that the tangent vector of a simple closed curve rotates by $ 2 \pi$

7 votes
1 answer
1k views

A combinatorial proof of Wilson's Theorem

7 votes
1 answer
3k views

Applications of Whitney's Approximation Theorem

7 votes
0 answers
385 views

Applications of Atiyah Singer Index Theorem

6 votes
2 answers
177 views

Calculating the extraordinary cohomology of $\mathbb{C}P^n$

6 votes
1 answer
663 views

Classifying map of tensor product of two line bundles

6 votes
1 answer
225 views

Group of units of $\mathbb{Z}_3[[x]]$

6 votes
7 answers
3k views

Proving that $\sqrt[3] {2} ,\sqrt[3] {4},1$ are linearly independent over rationals

6 votes
2 answers
291 views

A strange answer for $\int _{-1}^1 \log x\; dx$

5 votes
1 answer
527 views

Finding an analytic function such that real part is the given function.

5 votes
2 answers
401 views

An example of space $V$ such that $(V^{\perp})^{\perp} \neq V$

5 votes
1 answer
2k views

value of the integral $\int_0^{2\pi} \log|1-ae^{i \theta}| $

5 votes
1 answer
762 views

Does there exist a nowhere differentiable, everywhere continous, monotone somewhere function?

5 votes
1 answer
249 views

Proving a set to be closed

5 votes
1 answer
154 views

How to integrate $\int_0^{\infty}\frac{e^{-(t+\frac1t)}}{\sqrt t} dt$?

5 votes
1 answer
379 views

If the suspensions of two simply connected spaces are homotopy equivalent, are the spaces homotopy equivalent?

4 votes
1 answer
317 views

Proving that $\xi$ is a trivial vector bundle iff $\xi \oplus \varepsilon^1$ is trivial

4 votes
3 answers
2k views

Proving that hopf map from $S^3 \to S^2 $ is not null homotopic

4 votes
0 answers
411 views

Proving euler class of trivial bundle is zero

4 votes
1 answer
544 views

Reference for Whitney's approximation theorem for manifolds with boundary

4 votes
2 answers
325 views

A question on the non trivial rank three bundle on $S^2$

4 votes
2 answers
93 views

Constructing an Equidistributed set

4 votes
1 answer
290 views

Equivalence between two definitions of compactifications of an elliptic curve

4 votes
1 answer
311 views

Proving $\Gamma(x)$ is holomorphic

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