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rschwieb
  • Member for 13 years, 8 months
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About

PhD

I maintain a Database of Ring Theory. Please register there or drop by the chatroom to discuss additions, changes, and questions.

Interests:

Ring and module theory

Category theory and its applications

Mathematical physics

Clifford algebra/Geometric algebra

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Top posts

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answer
137
Is zero a prime number?
Oct 29, 2013
answer
90
Are there mathematical concepts that exist in dimension $4$, but not in dimension $3$?
Sep 4, 2019
answer
76
Intuitive definitions of the Orbit and the Stabilizer
Dec 7, 2012
answer
70
difference between dot product and inner product
Aug 26, 2013
answer
70
What is the difference between a Hamel basis and a Schauder basis?
Jan 7, 2014
answer
69
Stopping the "Will I need this for the test" question
Jan 8, 2014
answer
65
Prove that if $g^2=e$ for all $g$ in $G$ then $G$ is Abelian.
Nov 15, 2012
answer
60
Can there be an onto homomorphism from a ring without unity to a ring with unity?
Feb 19, 2018
answer
49
Why don't Venn diagrams count as formal proofs?
Feb 14, 2013
answer
44
Motivation for the ring product rule $(a_1, a_2, a_3) \cdot (b_1, b_2, b_3) = (a_1 \cdot b_1, a_2 \cdot b_2, a_1 \cdot b_3 + a_3 \cdot b_2)$
Dec 8, 2017

Top Meta posts

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32
Is downvoting all solutions to a question that turns out to be a duplicate an acceptable use of downvotes?
26
Reforming closure's reputation: ideas to make closure more useful, less scary and more likely to be undone
25
What Do We Do About Comment-Answered Questions?
24
Why are people so interested in finding limits without l'Hôpital's rule?
24
Why is so important if a question is homework?

Top network posts

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16
Do all Noether theorems have a common mathematical structure?
16
'Strong' presence, but ________ absence?
13
Non-field example of a commutative, local, dual ring with nilradical $N$ such that $ann(N)\nsubseteq N$
12
Simple component that is not a two-sided ideal
10
Atlas-like websites on specific areas of mathematics