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Galois theory, named after Évariste Galois, provides a connection between field theory and group theory. Using Galois theory, certain problems in field theory can be reduced to group theory, which is, in some sense, simpler and better understood.

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Reference request: Volume 2 of Abhyankar's lectures on algebra?

Abhyankar has a magnificent, if meandering (check them out if you want to see what I mean), set of lectures on algebra. The description: This book is a timely survey of much of the algebra developed …
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