equivalence relation
reflexive, symmetric and transitive relation
associated elements
equivalence relation on elements of a ring, where two elements are associated to each other if one is the product of the other and a unit
equality
mathematical relationship asserting that two quantities have the same value
congruence relation
equivalence relation in algebra
matrix similarity
equivalence relation between matrices
enharmonic equivalence
note, interval, or key signature that is equivalent to some other note, interval, or key signature but "spelled", or named differently
link concordance
relation between mathematical links in knot theory
regular isotopy
equivalence relation of link diagrams
A-equivalence
equivalence relation between map germs
matrix congruence
equivalence relation between matrices
K-equivalence
mathematical equivalence relation
equivalence of categories
abstract mathematics relationship
homomorphic equivalence
equivalence relation of graphs, where two graphs 𝐺 and 𝐻 are homomorphically equivalent iff there exist graph homomorphisms 𝐺→𝐻 and 𝐻→𝐺
algebraic space
generalization of a scheme; an étale equivalence relation on a scheme; a sheaf of sets on the big étale site with representable diagonal morphism and a surjective étale morphism from a scheme
synonymy
the quality of being synonymous
Green's relations
five equivalence relations (H, L, R, D, J) defined on any semigroup or monoid