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The Amplitwist's user avatar
The Amplitwist's user avatar
The Amplitwist's user avatar
The Amplitwist
  • Member for 3 years, 2 months
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5 votes

Ahlfors' proof of Cauchy's theorem in a disk

5 votes

Arcwise connected part of $\mathbb R^2$

4 votes
Accepted

How do these statements imply that the square root of 2 is irrational?

4 votes

If char K=0 , then every irreducible polynomial is separable

3 votes

Is it true if a face of a graph is not homeomorphic to an open disk, then we may find a noncontractible curve contained in the face?

3 votes

Roots of a polynomial

2 votes
Accepted

Formulations of Cauchy's theorem that don't seem consistent

1 vote
Accepted

Average distance between a point and the center of a unit square (Why my answer is wrong?)

1 vote
Accepted

Proving $(\nabla \times \mathbf{v}) \cdot \mathbf{c} = \nabla \cdot (\mathbf{v} \times \mathbf{c})$ using cylindrical coordinates

1 vote

if $f(x)$ is a polynomial with complex coefficients, what does $|f(x)|\geq 1$ for all $x\in \mathbb{C}$ imply?

1 vote
Accepted

Can there be more than $\log_2(n)$ mutually orthogonal $(\pm1)$-vectors $x$ in $\mathbb{R}^n$ such that $x_{2k-1} \neq x_{2k}$ for all $k$?

0 votes

Suppose for a region on a surface I can draw a "handle" can I cut the surface to reduce it's genus while leaving the region intact?

0 votes

Genus of a graph consisting of two faces homeomorphic to open disks

0 votes
Accepted

Counting the number of proper colorings on a cycle graph

0 votes

Software For Creating Commutative Diagrams