Reputation
11,034
Next privilege 15,000 Rep.
Protect questions
Badges
3 38 84
Impact
~132k people reached

Jun
17
revised Counting the number of solutions of equation $x^2 + y^2 = 1$ over $\Bbb Z/p$
P.S. about Weil etc
Jun
15
revised $SL_2(\mathbb Z_3)/Z(SL_2(\mathbb Z_3)) \cong \mathbb A_4$
edited tags
Mar
30
revised Counter-example to exponential law for locally compact [non-Hausdorff] spaces
deleted 123 characters in body
Mar
20
revised Algebraic tricks like componendo dividendo
edited tags
Jan
17
revised Calculate all the generators in $\mathbb{Z}/61$
edited tags
Jan
13
revised Summation with Binomial Coefficients, $\sum (-1)^k \binom{m_1}{k} \binom{m_2}{k} $
more descriptive title
Jan
10
revised The smallest $n> 0$ with the nonzero $n$th Stiefel-Whitney class is a power of 2 when total Stiefel-Whitney class is not trivial.
edited tags
Jan
9
revised Finite summation with binomial coefficients, $\sum (-1)^k\binom{r}{k} \binom{k/2}{q}$
more descriptive title
Jan
7
revised Binomial coefficients identity: $\sum i \binom{n-i}{k-1}=\binom{n+1}{k+1}$
more descriptive title
Jan
7
revised Reference for secondary cohomology operations
edited tags
Jan
7
revised Sum concerning Catalan triangle and binomials
link to wiki
Jan
6
revised Cohomology calculation or computation?
edited tags
Jan
6
revised K-theory formulation of the index theorem
tags, minor tex tweaks
Jan
6
revised Closed form for a formula with a summation over $i\binom{n-i}{k-1}$, and combinatorial proof?
edited tags
Jan
5
revised How to proof that $\sum_{i=1}^{2^n} 1/i \ge 1+n/2$
better tex, fixed typo
Jan
5
revised Binomial Sum Related to Fibonacci: $\sum\binom{n-i}j\binom{n-j}i=F_{2n+1}$
+1 proof, +1 generalization, +1 disclaimer
Jan
5
revised Inequality involving binomial coefficients
edited tags
Jan
5
revised Does the classifying map of a fibre bundle only depend on the transition functions?
edited tags
Jan
5
revised Is $\mathbb{H}P^\infty$ an H-space or not?
edited tags
Jan
3
revised Show that $\mathbb{R} P^3$ is not homotopy equivalent to $\mathbb{R} P^2 \vee S^3$.
edited tags