Re:Ask HN: How to self-study mathematics from the undergrad ...
by azhenley on Friday January 18, 2019 @11:13AM
(#18940267)
Any suggested reading on rings and lattices? I took a lot of math classes in undergrad but was never exposed to these concepts.
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Re:Ask HN: How to self-study mathematics from the undergrad ...
by madhadron on Friday January 18, 2019 @11:20AM
(#18940333)
Any standard abstract algebra textbook will cover rings in gross detail. Dummit and Foote is a much beloved standard, but is also used in graduate classes. I've heard good things about Pinter's book (http://www2.math.umd.edu/%7Ejcohen/402/Pinter%20Algebra.pdf).
For lattices, there's Birkhoff's book on lattice theory, which is where I learned what I know about it. I haven't spent any time with other books.
Re:Ask HN: How to self-study mathematics from the undergrad ...
by Karrot_Kream on Friday January 18, 2019 @02:58PM
(#18942430)
Really enjoyed Algebra: Category 0. Introduces some basic Category Theory and uses it to develop the standard practice of undergrad algebra. The exercises are medium difficulty (nothing ridiculous like a Knuth or Spivak problem, but nothing breezy either) and there are enough examples in the text of proofs with enough detail to get you working on the exercise problems.
Re:Ask HN: How to self-study mathematics from the undergrad ...
by Koshkin on Friday January 18, 2019 @05:47PM
(#18943852)
Did you mean Aluffi’s Algebra: Chapter 0? What a wonderful book.
Re:Ask HN: How to self-study mathematics from the undergrad ...
by Karrot_Kream on Friday January 18, 2019 @06:19PM
(#18944062)
Sorry yes
Re:Ask HN: How to self-study mathematics from the undergrad ...
by wbl on Friday January 18, 2019 @11:14AM
(#18940278)
Herstein Topics in Algebra or Dummit and Foote.
Re:Ask HN: How to self-study mathematics from the undergrad ...
by mlevental on Friday January 18, 2019 @11:19AM
(#18940319)
goofy suggestion. those are both either grad or senior undergrad books depending on where you are. much better suggestion is
A Book of Abstract Algebra by Pinter (really gentle)
or
A First Course in Abstract Algebra by Fraleigh
Re:Ask HN: How to self-study mathematics from the undergrad ...
by wbl on Friday January 18, 2019 @11:54AM
(#18940605)
I used on in high school and the other my second year of undergrad. They have lots of material but they also have good exercises and explanations.
Re:Ask HN: How to self-study mathematics from the undergrad ...
by dunham on Friday January 18, 2019 @07:04PM
(#18944297)
Herstein was my undergrad book back in the early 90's. I remember really liking it. It's been a very long time, but my recollection was that the groups to rings progression felt a lot more natural to me than the rings to groups progression of some of the other books at the time.
Re:Ask HN: How to self-study mathematics from the undergrad ...
by gnulinux on Friday January 18, 2019 @06:45PM
(#18944194)
Dummit&Foote imho is the best undergrad algebra book.
Re:Ask HN: How to self-study mathematics from the undergrad ...
by ducttapecrown on Friday January 18, 2019 @12:06PM
(#18940743)
Lattices (the algebraic structure) seem to exist only on Wikipedia in the sense that the only time I've seen lattices every mentioned in my standard undergrad education is once for a proof of the Stone-Weierstrauss theorem.
I know there are textbooks on the topic, and probably lots of people who deal with lattices a lot. But my own experience seems to be that wikipedia puts more emphasis on lattices and things like universal algebra than actually happens in math.
Re:Ask HN: How to self-study mathematics from the undergrad ...
by madhadron on Friday January 18, 2019 @12:20PM
(#18940855)
There is an interesting rant from Gian-Carlo Rota on why lattices are so rarely taught despite being so ubiquitous. I include them based on the amount of use I have gotten out of them over the years. For example, the entire theoretical structure of eventual consistency is "make your merge operation the meet of a semilattice."