Problem regarding isometric isomorphisms
127491
Isometric isomorphism between $R^2$ and $R$
124933
Isometry group question
115663
Proving an isomorphism using the isomorphism theorems
60925
Why these are isomorphic each other for given these rings?
6385
Minimal counterexamples of the isomorphism problem for integral group rings
148881
Aut(GxH) isomorphic to Aut(G)xAut(H)
109643
Prove that every isometry on $\mathbb{R}^2$ is bijective
46841
When is a graph isomorphic to the source?
9074
Example of non-isomorphic structures which are elementarily equivalent
134458
Isomorphisms preserving integral domains and fields
117131
Canonical Isomorphism Between $\mathbf{V}$ and $(\mathbf{V}^*)^*$
91222
Isomorphism between $\mathfrak o(4,\mathbb R)$ and $\mathfrak o (3,\mathbb R) \oplus\mathfrak o (3,\mathbb R) $
143517
Isomorphisms Between a Finite-Dimensional Vector Space and its Dual
99938
Is the conjugation map always an isomorphism?
136083
Show that $\sigma\circ\phi : G_1 \to G_3$ is an isomorphism
55778
Group theoretic meaning of natural isomorphisms between certain functors
81238
Is $O(2)$ really not isomorphic to $SO(2)\times \{-1,1\}$?