Please turn JavaScript on
header-image

Abstract Algebra

follow.it gives you an easy way to subscribe to Abstract Algebra's news feed! Click on Follow below and we deliver the updates you want via email, phone or you can read them here on the website on your own news page.

You can also unsubscribe anytime painlessly. You can even combine feeds from Abstract Algebra with other site's feeds!

Title: Abstract Algebra

Is this your feed? Claim it!

Publisher:  Unclaimed!
Message frequency:  0.1 / day

Message History

Problem. Let be a solvable group, and let be a minimal normal subgroup of Show that i) is abelian, ii) if is finite, then is an elementary abelian -group. Solution. i) By Problem 1 in this post, contains a non-trivial abelian subgroup which is normal in Thus, by the minimality of we must have and […]

Read full story
In this note, is a ring with identity, and by ideal we mean two-sided ideal. Let’s begin with a question that at first looks a bit ridiculous because there is no reason to think that the answer could possibly be positive in general. That is true, however it turns out that the question is actually […]

Read full story
Here we defined an circulant matrix as any matrix in the form So where are some fixed matrices with the identity matrix. Let be the set of all circulant matrices. So and hence is a -vector space of dimension In this note, we show that is much more than that; it is in fact a […]

Read full story