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Oskar Henriksson's user avatar
Oskar Henriksson's user avatar
Oskar Henriksson's user avatar
Oskar Henriksson
  • Member for 10 years, 9 months
  • Last seen this week
6 votes

How does the coefficient ring influence the Euler characteristic?

5 votes

Unique line in $\mathbb{P}^3$ through a point $p$ and intersecting two disjoint lines

0 votes
Accepted

Why does every toric ideal correspond to an affine toric variety?

4 votes
Accepted

Natural Isomorphism Between Two Descriptions of Tangent Space

11 votes

Are all Lie groups Matrix Lie groups?

0 votes

Totally geodesic submanifolds of $\mathbb{R}P^n$

1 vote

Uniqueness of totally geodesic submanifold with a given tangent space

6 votes
Accepted

Geodesics of the orthogonal group

17 votes

Understanding of the theorem that all norms are equivalent in finite dimensional vector spaces

8 votes

In Lie groups, why is left translation a diffeomorphism?

10 votes

How to prove that this kernel has codimension 1?

2 votes
Accepted

Proof of l'Hôpital's rule, g'(0)=0

11 votes

If $H$ is a Hilbert space and $M$ is a closed subspace of $H$, then $H/M$ is a Hilbert space

1 vote

Reductio ad Absurdum within a Conditional Proof

4 votes

$\{\implies, \vee\}$ and $\{\iff,\lnot\}$ cannot express all the truth functions