1:06 PM
specific-question This question was bumped today: Why does $E\otimes_KE\cong EG$ imply that Galois theory works? Should the deprecated abstract-algebra tag be simply removed, or should it be replaced by some other tag?
14
This is a part of statement in the book I do not fully appreciate. Suppose $E/K$ is Galois extension and $G$ the galois group of $E/K$. $E[G]$ is the group ring formed by finite group $G$. "It is worthwhile remarking that $E\otimes_KE\cong EG$ can be viewed as a deep reason why Galois theory wor...
« first day (2309 days earlier) ← previous day next day → last day (1595 days later) »
Transcript for
Dec17
Dec '1918
Dec19
MO editors' lounge
Talk related to editing, tagging and related matters for the s...