mathwonk's latest activity

I have spent some time pondering the first part of the translation of Galois' "first memoir" by Neumann, roughly pages 107-117 in...

There is a book by H. Edwards "Galois Theory". This might also be of interest https://www.ams.org/notices/201207/rtx120700912p.pdf

the difference between someone who understands Galois theory and the rest of us is illustrated by this simple question: when asked why...

wouldn't an AI bot have more perfect grammar?

I would suggest you start by checking out the work of Procrustes, who created a bed that was the perfect fit for anyone. * Don't set out...

Please forgive me for reminding you that it is much easier to make a list than it is to read profitably through that list. In my...

Right. I was just trying to stay as basic as possible.

The theorem specifies that the domain must be simply connected. Your "counter example" fails to remain within a simply-connected domain...

It is true that OP has not checked simple connectedness. However, although the theorem stated specifies simply connected, all that is...

Yes I think this is the (obvious) answer. I was confused by the definition of ##Ln(z)## with branch cut on the negative real axis. In...

The natural logarithm is by definition any analytic function defined on a (connected) open set U not including 0, and (right-) inverse...

I currently still have over 250 mathematics, and some more physics, books from my university career on my (sturdy built-in) shelves ...

Re-reading Mike Artin's book, Algebra, now after many years, I am struck by how very clear his explanations are. It may help that he...

Thanks martinbn, I enjoyed perusing this paper from Keith Conrad; I thought his examples were particularly enlightening...

Keith Conrad has a few things written up including Galois theory https://kconrad.math.uconn.edu/blurbs/