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Earthliŋ's user avatar
Earthliŋ's user avatar
Earthliŋ
  • Member for 11 years, 10 months
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10 votes

Are all finite-dimensional algebras of a fixed dimension over a field isomorphic to one another?

4 votes

Looking for challenge problems in topology

3 votes
Accepted

Star products and Jacobi Identity

2 votes
Accepted

$X$ coherent with family $\mathcal{B}$ of subspaces.Then $\bigsqcup_{B\in\mathcal{B}} B\to X$ induced by inclusion of each $B\to X$ is a quotient map

2 votes

How does advancing through the math major work?

2 votes

Find $\dim R(T)$ and $\dim N(T)$ from the matrix of a linear map $T$

2 votes

Orbit and Stabilizer

2 votes

Calculus on Manifolds (Spivak), problem 2-41(a)

1 vote

$\mathbb{R}^\ast$, $\mathbb{R}_+$, $\mathbb{R}^\ast_+$ "deprecated"?

1 vote

The set of maximal flags is projective

1 vote

Prove all neighbourhoods are open in this topology