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Operator vs Semisimple - What's the difference?

operator | semisimple |

As a noun operator

is an operator, a service provider, an isp.

As an adjective semisimple is

(mathematics|of a module) in which each submodule is a direct summand.

operator

Noun

(en noun)
  • One who operates.
  • *
  • , title=(The Celebrity), chapter=1 , passage=The stories did not seem to me to touch life. […] They left me with the impression of a well-delivered stereopticon lecture, with characters about as life-like as the shadows on the screen, and whisking on and off, at the mercy of the operator .}}
  • A telecommunications facilitator whose job is to establish temporary network connections.
  • (mathematics) A function or other mapping that carries variables defined on a domain into another variable or set of variables in a defined range.
  • Chinese whispers.
  • (informal) A person who is adept at making deals or getting results, especially one who uses questionable methods.
  • A member of a military Special Operations unit.
  • (computing) The administrator of a channel or network on IRC.
  • (linguistics) A kind of expression that enters into an a-bar movement dependency and is said to bind a variable.
  • In the sentence "What did Bill say he wants to buy?", "what" is an operator , binding a phonetically empty variable.

    Derived terms

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    Anagrams

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    semisimple

    English

    Adjective

    (-) (wikipedia semisimple)
  • (mathematics, of a module) In which each submodule is a direct summand.
  • (mathematics, of an algebra or ring)
  • (mathematics, of an operator or matrix) For which every invariant subspace has an invariant complement, equivalent to the minimal polynomial being squarefree.
  • (mathematics, of a Lie algebra) Being a direct sum of simple Lie algebras.
  • (mathematics, of an algebraic group) Being a linear algebraic group whose radical of the identity component is trivial.