I need a reference for field extension and Galois extension (like an introduction) please.
Thank you.
I need a reference for field extension and Galois extension (like an introduction) please.
Thank you.
There are many references for such topics. As @DieterKadelka suggested, the book by Lang is a really good reference. You may also be interested in the following ones:
Bastida, J. R. (1984). Field Extensions and Galois Theory. Cambridge University Press
Edwards, Harold M. (1984). Galois Theory. Graduate Texts in Mathematics. 101. New York: Springer-Verlag
Hungerford, T. (2012). Abstract Algebra: An introduction. 3rd ed.
Girardi, M; Israel, G. (1976). Teoria dei campi. Feltrinelli Editore Milano