Math146 Fall 2020 - Galois Theory - Tufts University

Posted on 2021-02-01 by George McNinch

Instructor: George McNinch

Recent course posts

Date Title
2021-02-01 Week 1 - Recollections from Math 145
2021-01-31 Welcome to class
\[f(x) = \prod_{g \in \Gamma} (x-g.\alpha) \in E[x] \quad \text{for \(\alpha \in E\)} \] \[\forall h \in \Gamma, h\cdot f(x) = h \cdot \prod_{g \in \Gamma} (x-g.\alpha)\] \[= \prod_{g \in \Gamma} (x-hg.\alpha) = f(x)\] \[\implies f(x) \in E^{\Gamma}[x] \]