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175 Answers

newest activity votes
3
Graph $y=1/\sin x$
3
Center of a ring isomorphic to endomorphism ring of identity functor
3
Computing this fundamental group
3
Group of finite ideles
3
Find an object $x$ such that $1=\sum_{n>0} n^n\cdot x^n$
3
to show $f(x)=cx$ for some $c\in\mathbb{R}$
3
Topological fields questions
3
Evaluation of limit and colimit in the category of Set
3
Convergence and closed form of this infinite series?
3
Does a non-zero wedge product make a coordinate system?
3
Showing that $f_{2n+1}=f_{n+1}^2+f_n^2$.
3
What is $[[H, H], [H, H]]$, where $H$ is the free group on two elements $a,b$?
3
In category theory, is there any such thing as “compatibility” for arrow composition?
3
How to prove that $(M \oplus N) \otimes P$ is isomorphic to $(M \otimes P) \oplus (N \otimes P)$?
3
Lie brackets of $\frac{\partial f}{\partial x}$ and $\frac{\partial f}{\partial y}$
3
Explain why this homotopy works?
2
Which wheel has most chance of winning a roulette game?
2
Ways of disproving proofs of the Collatz Conjecture?
2
What is Weil paring computing really?
2
The determinant of block triangular matrix as product of determinants of diagonal blocks
2
Common student mistakes/misconceptions in a first year calculus course
2
A question on level structures on elliptic curves
2
Limits of three functions
2
Area enclosed by the curve $x^2+y^2=|x|+|y|$.
2
Proof of condition for distinct left cosets.
2
How do I find $\frac{\text{d}}{\text{d}z}\left(z\bar{z}\right)$?
2
Find $\lim_{x \to 0} (f(3+1/x)/f(3))^x$
2
Subgroup generated by Sylow p-subgroups is normal.
2
find the map which induces the homorphism between fundamental groups
2
How does smoothness prevent “singularities”?
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