Stack Exchange

rschwieb

math.stackexchange.com/users/29335/rschwieb

Age: 30

PhD in rings and modules

Interests:

Mathematical: ring and module theory, geometry, Lie algebra, Clifford algebra, mathematical physics

Other: programming, Wikipedia, chess

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Top Questions
Top Answers
28
“Negative” versus “Minus”
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27
Why don't Venn diagrams count as formal proofs?
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15
$AB \neq 0$ but $BA=0$
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14
$\mathbb R^3$ is not a field
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14
Where does the word “torsion” in algebra come from?
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11
Matrices with $A^3+B^3=C^3$
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11
How do I “learn” more difficult algebra?
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11
Solving an equation with fractional powers
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11
Practical Tips: Mathematical research and discoveries
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10
Why are only the first four alternating groups are non-simple?
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10
How can the real numbers be a field if $0$ has no inverse?
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9
Is a countable set $A$ dense in an uncountable set $B$ by analogy of $\mathbb{Q}$ being dense in $\mathbb{R}$?
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9
What am I losing if I decide to perform all math by computer?
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9
Pathologies in module theory
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9
Prove that if $g^2=e$ for all g in G then G is Abelian.
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8
A coarser topology has more compact sets
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8
How many subsets are there in a set of size $n$? No combinatorics
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8
Does the product of two invertible matrix remain invertible?
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8
About group multiplication table
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8
which one is true in a group
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8
High School Mathematics
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8
Why do we negate the imaginary part when conjugating?
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8
4 dimensional numbers
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7
Left inverse implies right inverse in a finite ring
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7
Can the product of non-zero ideals in a unital ring be zero?
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7
An ideal that is maximal among infinitely-generated ideals is prime.
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7
How to make notes when learning a new topic
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7
Prove that $J^T J+\lambda I$ is a singular matrix
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7
What's the Clifford algebra?
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7
Should I try to change the way Abstract Algebra is taught at my university? If so, how?
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