Finding an isomorphic subring of matrices
45627
Find a sub-ring of M(2, $\mathbb{Q}$) which is isomorphic to $\mathbb{Q}$
13606
Prove that $K$ is isomorphic to a subfield of the ring of $n\times n$ matrices over $F$.
118117
Conjugacy Class in a matrix group with columns of standard basis
12213
Similarity of real matrices over $\mathbb{C}$
120968
Isomorphism of stabilizer over $S_n$ to $S_{n-1}$
105996
Topology of matrices
41660
Taking the product of a list of matrices
55230
Dimension of set of commutable matrices
29756
Classsifying 1- and 2- dimensional Algebras, up to Isomorphism
55159
Find all matrices that commute with given matrix
12955
Classification of $n\times n$ real matrices up to congruence
105887
Ring and Subring with different Identities
42141
Proving Distributivity of Matrix Multiplication
145221
Ring isomorphism (polynomials in one variable)
11566
Similar matrices and minimal polynomial
116594
Finite fields are isomorphic
70658
Isomorphism between quotient modules