Isomorphic

From GM-RKB
Jump to navigation Jump to search

See: Graph Isomorphism, Homomorphism.



References

  • (Wikipedia, 2009) ⇒ http://en.wikipedia.org/wiki/Isomorphic
    • In abstract algebra, an isomorphism (Greek: ἴσος isos "equal", and μορφή morphe "shape") is a bijective map f such that both f and its inverse f −1 are homomorphisms, i.e., structure-preserving mappings. In the more general setting of category theory, an isomorphism is a morphism f:X→Y in a category for which there exists an "inverse" f −1:Y→X, with the property that both f −1f=idX and ff −1=idY.
    • Informally, an isomorphism is a kind of mapping between objects, which shows a relationship between two properties or operations. If there exists an isomorphism between two structures, we call the two structures isomorphic. In a certain sense, isomorphic structures are structurally identical, if you choose to ignore finer-grained differences that may arise from how they are defined.