Isomorphism: Isomorphism, Abstract Algebra, Homomorphism, Map (mathematics)

Representation (Mathematics): Relation (Mathematics), Isomorphism, Abstract Algebra, Theory

Graph homomorphism: theory, Subgraph, isomorphism problem, isomorphism, Inverse function, coloring, Tensor product of graphs

Kernel (algebra): (algebra), Mathematics, Abstract Algebra, Homomorphism

Skeleton (Category Theory): Mathematics, Category Theory), Subcategory, Isomorphism, Iff, Isomorphism of Categories