Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective mathematics In which each submodule is a direct summand.
  • adjective mathematics For which every invariant subspace has an invariant complement, equivalent to the minimal polynomial being squarefree.
  • adjective mathematics Being a direct sum of simple Lie algebras.
  • adjective mathematics Being a linear algebraic group whose radical of the identity component is trivial.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

semi- +‎ simple

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Examples

  • The action of a real semisimple lie group on a complex flag manifold, II: Unitary representations on partially holomorphic cohomology spaces by Joseph Albert Wolf

    New Song - "You Promised Us" 2007

  • Consider the Lie Algebra of a semisimple algebraic group over a field of characteristic

    MetaFilter mattholomew 2008

  • "generalized Sato-Tate law," and that figuring out which generalized Sato-Tate law applies to a given family amounts essentially to computing a certain complex semisimple (not necessarily connected) algebraic group, the "geometric monodromy group" attached to that family.

    AvaxHome RSS: 2009

Comments

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  • The definitions are a bit semicomplex. No. 2 is quite clear and simple, however.

    October 23, 2011