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algebraic extension

noun

Definitions

  1. A field extension L/K which is algebraic over K (i.e., is such that every element of L is…

    A field extension L/K which is algebraic over K (i.e., is such that every element of L is a root of some (nonzero) polynomial with coefficients in K).

    • It turns out that when an irreducible polynomial splits in an algebraic extension, then the order at the new irreducible factors remains the same as before for arguments that are defined over the ground field.
    • We describe the correspondence between subfields of the field P#95;a(O) that are algebraic extensions of the field K(X) and the subgroups of finite index of the fundamental group #92;pi#95;1(X#92;setminusO).

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sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA