Skip to main content
Search type Search syntax
Tags [tag]
Exact "words here"
Author user:1234
user:me (yours)
Score score:3 (3+)
score:0 (none)
Answers answers:3 (3+)
answers:0 (none)
isaccepted:yes
hasaccepted:no
inquestion:1234
Views views:250
Code code:"if (foo != bar)"
Sections title:apples
body:"apples oranges"
URL url:"*.example.com"
Saves in:saves
Status closed:yes
duplicate:no
migrated:no
wiki:no
Types is:question
is:answer
Exclude -[tag]
-apples
For more details on advanced search visit our help page
Results tagged with
Search options questions only not deleted user 3106

Questions of the kind "What's the name for a X that satisfies property Y?"

54 votes
3 answers
7k views

Why are parabolic subgroups called "parabolic subgroups"?

Over the years, I have heard two different proposed answers to this question. It has something to do with parabolic elements of $SL(2,\mathbb{R})$. This sounds plausible, but I haven't heard a reall …
Timothy Chow's user avatar
  • 82.7k
10 votes
2 answers
1k views

Analytic/synthetic distinction in mathematics besides geometry?

I have some background in philosophy and I am pretty sure that the terminology does not "come from philosophy" in any obvious sense. … I'm just asking whether the terminology is already in use, and/or would be readily understood by people, and not confused with the other notion of "analytic". …
Timothy Chow's user avatar
  • 82.7k
5 votes
1 answer
292 views

Why aren't $B_n$ and $C_n$ the other way around?

In the classification of complex simple Lie algebras/groups, I have always been vaguely puzzled why $B_n$ and $C_n$ are labeled the way they are. I always instinctively want to put the special orthog …
Timothy Chow's user avatar
  • 82.7k