In mathematics, specifically in group theory, a semidirect product is a particular way in which a group can be put together from two subgroups, one of which is a normal subgroup. A semidirect product is a generalization of a direct product. It is a cartesian product as a set, but with a particular multiplication operation.
Read more about Semidirect Product: Some Equivalent Definitions, Elementary Facts and Caveats, Semidirect Products and Group Homomorphisms, Examples, Relation To Direct Products, Generalizations, Notation
Famous quotes containing the word product:
“The history is always the same the product is always different and the history interests more than the product. More, that is, more. Yes. But if the product was not different the history which is the same would not be more interesting.”
—Gertrude Stein (1874–1946)