Normal Subgroup

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High Quality Content by WIKIPEDIA articles! In abstract algebra, a normal subgroup is a subgroup which is invariant under conjugation by members of the group. Normal subgroups can be used to construct quotient groups from a given group. Évariste Galois was the first to realize the importance of the existence of normal subgroups. The last condition accounts for some of the importance of normal subgroups; they are a way to internally classify all homomorphisms defined on a group. For example, a non-identity finite group is simple if and only if it is isomorphic to all of its non-identity homomorphic images, a finite group is perfect if and only if it has no normal subgroups of prime index, and a group is imperfect if and only if the derived subgroup is not supplemented by any proper normal subgroup.

Weitere Informationen

  • Allgemeine Informationen
    • GTIN 09786130333034
    • Editor Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
    • Sprache Englisch
    • Größe H220mm x B150mm x T4mm
    • Jahr 2010
    • EAN 9786130333034
    • Format Kartonierter Einband
    • ISBN 978-613-0-33303-4
    • Titel Normal Subgroup
    • Untertitel Abstract Algebra, Subgroup, Inner Automorphism, Quotient Group, Group (Mathematics), Logical Equivalence, Coset
    • Gewicht 124g
    • Herausgeber Betascript Publishers
    • Anzahl Seiten 72
    • Genre Mathematik

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