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seen Feb 6 at 9:41

Apr
9
awarded  Popular Question
Jan
30
asked Integral computation - what's going on?
Dec
18
accepted Determinant inequality for trace class operator
Dec
18
comment Determinant inequality for trace class operator
That's simply terrific! Thanks a million. Answer accepted!
Dec
17
comment Determinant inequality for trace class operator
Thank you for your reply. I don't have a positive operator, however, I have a family of operators $A(\lambda )$ where $\lambda \in \mathbb{C}$. I also happen to have $\| A (\lambda ) \|_1\le |\lambda |$ and I'm only interested in the inequality for $|\lambda |$ small.
Dec
17
asked Determinant inequality for trace class operator
Dec
12
comment Limit of an indeterminate form $\infty - \infty$.
It possibly becomes more explicit if you write $x - e^x = -e^x (1-\frac{x}{e^x})$?
Dec
6
accepted Combinatorics and upper bound
Dec
6
comment Combinatorics and upper bound
Just what I was looking for! Thank you so much!
Dec
6
revised Combinatorics and upper bound
added 2 characters in body
Dec
6
revised Combinatorics and upper bound
added 109 characters in body
Dec
6
asked Combinatorics and upper bound
Dec
3
awarded  Yearling
Nov
6
comment Finding the complex Fourier Series
Just compute $c_n=(2\pi )^{-1}\int _0 ^K 2\pi e^{-inx}\,dx $ for any $n\in \mathbb{Z}$. The answer is then $\sum _{n=-\infty }^\infty c_n e^{inx}$.
Nov
6
comment Showing that a map $F:C[0,1] \rightarrow \mathbb{R}^{[0,1]}$ takes $ C[0,1]$ to itself.
Should it be $g(x,y,f(y))$ (rather than $g(x,yf(y))$)?
Nov
6
comment Finding the integral of $x^2 \tan^{-1}x$
It is just a constant and hence can be included in the $C$.
Nov
5
accepted Can 0 be an eigenvalue?
Nov
5
accepted Upper bound on a sum of complex numbers
Oct
29
answered Question regarding simple limit
Oct
16
answered inverse transform of $Z(\omega) =\frac{a}{\alpha-i\omega}$