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
 Nonderogatory $\iff$ cyclic vector exists
Useful links:
2
answers
3
questions
~1k
people reached

United States

Member for 7 years, 11 months

133 profile views

Last seen yesterday
Communities (25)
Top network posts
Badges (11)
Gold
—
Silver
2
Rarest

Apr 5

Nov 14 '19
Bronze
9
Rarest

May 7 '17

Apr 5

Apr 23 '19