2.3 An example. Algebraic closure.

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Del curso dictado por National Research University Higher School of Economics
Introduction to Galois Theory
91 calificaciones
National Research University Higher School of Economics
91 calificaciones
De la lección
Week 2
We introduce the notion of a stem field and a splitting field (of a polynomial). Using Zorn's lemma, we construct the algebraic closure of a field and deduce its unicity (up to an isomorphism) from the theorem on extension of homomorphisms.

Conoce a los instructores

  • Ekaterina Amerik
    Ekaterina Amerik
    Professor
    Department of Mathematics

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