351 reputation
111
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age 34
visits member for 2 years, 9 months
seen Oct 10 at 18:14

I like to try math in my spare time.


Oct
10
asked Can a smooth function $f\colon\partial D^n\to\partial D^n$ be extended to a smooth function $\hat{f}\colon D^n\to D^n$?
Sep
24
awarded  Autobiographer
Jul
2
awarded  Curious
Nov
29
awarded  Disciplined
Aug
15
comment Why does $\operatorname{tr}(A^k)=\operatorname{tr}(B^k)$ imply $\operatorname{Spec}(A)=\operatorname{Spec}(B)$?
@Babgen Thanks, that sounds interesting, but I don't follow. The $k$th row of the Vandermonde matrix would be the eigenvalues of the $k$th power. But how does taht relate to the specific eigenvalues themselves?
Aug
15
asked Why does $\operatorname{tr}(A^k)=\operatorname{tr}(B^k)$ imply $\operatorname{Spec}(A)=\operatorname{Spec}(B)$?
Jun
25
awarded  Critic
Jun
25
comment Is a linear functional on $\mathbb{R}^n$ positive if and only if its Riesz vector is positive?
How do you figure that? It doesn't seem like $r_f$ is even an element of $S$.
Jun
25
revised Is a linear functional on $\mathbb{R}^n$ positive if and only if its Riesz vector is positive?
edited title
Jun
25
asked Is a linear functional on $\mathbb{R}^n$ positive if and only if its Riesz vector is positive?
Feb
15
awarded  Yearling
Feb
7
accepted Product of monic irreducibles with degree dividing $n$ has no repeated roots?
Jan
25
asked Product of monic irreducibles with degree dividing $n$ has no repeated roots?
Sep
28
accepted Is $[0,1)\times[0,1]$ a linear continuum?
Sep
22
revised Is $[0,1)\times[0,1]$ a linear continuum?
added 22 characters in body
Sep
22
asked Is $[0,1)\times[0,1]$ a linear continuum?
Jul
6
asked Question on Malcev's _Immersion of an Algebraic ring into a skew field_.
Jul
3
accepted Why is the absence of zero divisors not sufficient for a field of fractions to exist?
Jul
3
comment Why is the absence of zero divisors not sufficient for a field of fractions to exist?
Thanks for the reference, it's quite illuminating for me.
Jul
3
comment Why is the absence of zero divisors not sufficient for a field of fractions to exist?
Thanks Martin, the link was quite helpful. I've used your advice on finding papers a handful of times already since you've posted these comments!