Skip to main content
fs l's user avatar
fs l's user avatar
fs l's user avatar
fs l
  • Member for 4 years, 2 months
  • Last seen more than a week ago
awarded
revised
Loading…
Loading…
comment
What kind of functions can be represented as infinite linear combinations of exponential functions?
Sorry for the late reply. Yes, thanks for the answer, now I am clear about it!
Loading…
comment
comment
upper bound for the number of integer solutions of a special equation
Thanks for sharing the idea, this is very helpful!
comment
upper bound for the number of integer solutions of a special equation
Thanks, I tried this method, it remains to bound the coefficient of $x^m$ on $\left(1+x+\cdots+x^{r-1}\right)^m$
Loading…
awarded
awarded
accepted
comment
A problem of matrix polynomial expansion
Yes, I see it, thanks for your reply!
awarded
answered
Loading…
comment
A problem of matrix polynomial expansion
Ok, I see. But this case is for diagonalizable matrix right? What if $A$ is not diagonalizable?
comment
A problem of matrix polynomial expansion
Thanks for providing this method by using trace trick! But I am a bit confused how to derive the trace equality $(tr(\sigma A^r D A^{n-1-r}))$? Could you give me some hints? Thanks!
awarded
asked
Loading…