716 reputation
59
bio website chrisphan.com
location 55987
age 33
visits member for 3 years, 10 months
seen Apr 15 at 16:26
I am a noncommutative ring theorist whose primary research interest has been homological results involving graded algebras (e.g. Koszulity and its generalizations).

Jun
25
awarded  Yearling
May
28
awarded  Yearling
May
29
awarded  Yearling
Nov
3
revised solving f(f(x))=g(x)
fixed typo
Jul
29
comment How connected are you?
According to the Erdős Number Project (oakland.edu/enp/trivia), out of the 401k authors in MathSciNet, 268k authors are in the largest connected component of the collaboration graph (the graph with authors listed in MathSciNet as vertices and an edge between two authors if MathSciNet reports they have co-authored). So it's not surprising that you have a finite distance from these people.
Jul
24
answered Tor and projective dimension
Jul
16
awarded  Civic Duty
Jul
14
comment Tensor product and category theory
The definition of $A \otimes B$ as a universal object in a category is treated in most graduate-level algebra books, e.g. Section IV.5 of Hungerford's Algebra. Here's a link: books.google.co.uk/…
Jul
14
awarded  Enlightened
Jul
12
awarded  Nice Answer
Jul
12
revised Does ZF prove that all PIDs are UFDs?
edited body
Jul
12
comment Does ZF prove that all PIDs are UFDs?
Re line breaks, <br /> will force a line break.
Jul
12
answered Does ZF prove that all PIDs are UFDs?
Jul
12
awarded  Nice Answer
Jul
10
comment Is there an Isomorphism between R and C under addition?
This related question talks about the need for the axiom of choice: mathoverflow.net/questions/25375/…
Jul
7
revised What are you using for symbolic computation?
deleted 1 characters in body
Jul
7
awarded  Nice Answer
Jul
6
revised What are you using for symbolic computation?
added 11 characters in body
Jul
6
revised What are you using for symbolic computation?
added 39 characters in body
Jul
6
answered What are you using for symbolic computation?