$\mathcal{C}$ is an algebra
98897
Proving that the set of $\nu$ measurable sets $M\subseteq P(X)$ is an algebra
118612
Neutral element in $\hom_C(A, B)$
17404
Artinian affine $K$-algebra
123419
Abstract algebra: homomorphism and an element of a prime order
115502
Analogue of the Cantor-Bernstein-Schroeder theorem for general algebraic structures
96380
Representation of $\text{sl}(2,\mathbb{C})$
117131
Canonical Isomorphism Between $\mathbf{V}$ and $(\mathbf{V}^*)^*$
86717
Completeness of $\langle \mathscr{C} [0, 1], \| \cdot \|_1 \rangle$
132653
How to show that $\mathfrak{sl}_n(\mathbb{R})$ and $\mathfrak{sl}_n(\mathbb{C})$ are simple?
110944
Proving that $AB-BA=cI$ for nontrivial $c \in \mathbb{C}$
42923
A Book for abstract Algebra
13371
Show that the Lie algebra generated by x, y with relations $ad(x)^2(y) = ad(y)^5(x) = 0$ is infinite dimensional and construct a basis
45219
Proving that $C$ is a subset of $f^{-1}[f(C)]$
73773
$C(M)=\{A\in M_n(\mathbb{C}) \mid AM=MA\}$ is a subspace of dimension at least $n$.
53335
Why isn't $\mathbb{C}[x,y,z]/(xz-y)$ a flat $\mathbb{C}[x,y]$-module
38130
Complex structure on $\mathbb{C}\mathbb{P}^2\# \dots \# \mathbb{C}\mathbb{P}^2$
105141
$\mathbb R[x]/\langle x^2+1\rangle\simeq\mathbb C$ and $\mathbb R[x]/\langle x^2+1\rangle$ contains a zero of $x^2+1$