**Graph homomorphism** — Not to be confused with graph homeomorphism. In the mathematical field of graph theory a graph homomorphism is a mapping between two graphs that respects their structure. More concretely it maps adjacent vertices to adjacent vertices. Contents 1… … Wikipedia

**Core** — may refer to: Contents 1 Science and Academics 2 Computers and Technology 3 Media … Wikipedia

**HNN extension** — In mathematics, the HNN extension is a basic construction of combinatorial group theory.Introduced in a 1949 paper Embedding Theorems for Groups [ cite journal|title=Embedding Theorems for Groups|journal=Jornal of the London Mathematical… … Wikipedia

**locally indicable** — adjective Such that each of its finitely generated subgroups maps homomorphically onto ℤ … Wiktionary

**homomorphic** — adjective technical of the same or similar form. Derivatives homomorphically adverb … English new terms dictionary

**homomorphic** — adj. (also homomorphous) of the same or similar form. Derivatives: homomorphically adv. homomorphism n. homomorphy n … Useful english dictionary