Show $\otimes$ and $*$ are the same operation on $\pi_1(G, x_0)$
52548
Topological group: Multiplying two loops is homotopic to linking these paths?
78592
Tensor product of Hadamard operators
145112
Show that the multiplicative group $(\mathbb{Z}/p\mathbb{Z})^*$ is cyclic
63803
Calculating the tensor product $\mathbb{Z}/n\mathbb{Z} \otimes_{\mathbb Z} \mathbb{Z}/n\mathbb{Z}$
90433
Isomorphisms between $(\mathbb Z_4,+)$ and $(U_5,*)$
25195
$2 \otimes_{R} 2 + x \otimes_{R} x$ is not a simple tensor in $I \otimes_R I$
28021
Showing that these two definitions of $\gcd(a,b)$ are equivalent
32302
Neukirch’s Number Theory – why is $ℂ \otimes_ℚ K → K_ℂ,~z \otimes a ↦ (j(z)a)_τ$ an isomorphism?
100845
How to prove that $G(x)=ax+b$ is a one-to-one correspondence where $a\neq0$ and $a,b\in\mathbb{R}$.
105363
$\mathbb Z^n/\langle (a,...,a) \rangle \cong \mathbb Z^{n-1} \oplus \mathbb Z/\langle a \rangle$
65873
A proof for Atiyah-Macdonald Exercise I.21.iii
85882
Show that $1\otimes (1,1,\ldots)\neq 0$ in $\mathbb{Q} \otimes_{\mathbb{Z}} \prod_{n=2}^{\infty} (\mathbb{Z}/n \mathbb{Z})$.
118049
Show that $\mathbb{R}^{\mathbb{R}} = U_{e} \oplus U_{o}$
53687
Why is $\text{Hom}(V,W)$ the same thing as $V^* \otimes W$?
85193
direct product commutes with tensor product?
83273
Show that $o(gHg^{-1})=o(H)$
108601
Show structure of a commutative ring in a tensor product