187,203
reputation
10
125
261
Ben Grossmann
(Formerly "Omnomnomnom"). I received my PhD in mathematics at Drexel University in Philadelphia, PA in 2019. My primary research area is matrix analysis.
Some answers I had fun putting together:
- An explanation of two's complements
- Explaining the transcendental numbers
- An introductory explanation of homology/cohomology
- What is knot theory
- Explaining commutators
- Explaining double dual spaces
- Explaining Lie Groups
- Guide to matrix norms
- No 2D Faithful Representations of $S_4$
- Eigenvalues and complexifications
- Finite fields: which maps are multiplications?
- A quick linear algebra chestnut
- $\operatorname{tr}((AB)^2) \leq \operatorname{tr}(A^2B^2)$
- Operator with interesting Jordan form
- Featuring cyclotomic polynomials
- Norm minimizing solutions
Some of my favorite questions/answers:
- A classic result from different approaches
- Apparent patterns that eventually fail
- Bad math that gets away with it
- Some great math puzzles
- Non-derogatory $\iff$ cyclic vector exists
Useful links:
6,795
answers
59
questions
~4.5m
people reached
-
United States
-
Member for 7 years, 11 months
-
25,862 profile views
-
Last seen 1 hour ago
Communities (25)
Top Meta Posts
6
4
Top network posts
Badges (396)
Gold
10
Rarest
-
May 9 '16
-
May 7 '15
-
Aug 17
Silver
125
Rarest
-
Jun 19 '20
-
Nov 21 '18
-
May 14 '17
Bronze
261
Rarest
-
Dec 5 '19
-
Jul 13
-
Feb 4 '20
