martini
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 Dec 3 revised when $\Bbb{Z}^n$ isomorphic to $\Bbb{Z}^m$ edited body Dec 3 comment when $\Bbb{Z}^n$ isomorphic to $\Bbb{Z}^m$ Why the downvote? Is my answer incorrect? Dec 3 comment when $\Bbb{Z}^n$ isomorphic to $\Bbb{Z}^m$ @learnmore No, I'm not. But if he (or any other visitor of this question) does, in my opinion, seeing the categorial context does not do any harm, in constrast, it sheds light on the general idea behind this argument. Dec 3 answered when $\Bbb{Z}^n$ isomorphic to $\Bbb{Z}^m$ Dec 3 answered wss process and autocorrelation Dec 3 revised Interchanging Two Sums added 1 character in body Dec 3 comment Interchanging Two Sums Right. Going to correct it, thx. Dec 3 answered Linear algebra, vector space Dec 3 revised Linear algebra, vector space added 149 characters in body Dec 3 answered How to compute $\lim\limits_{t\rightarrow0}\frac{\int_w^{w+tv}f(y)dy}{t}$? Dec 3 answered Interchanging Two Sums Dec 3 revised Rank of a linear operator given its characteristic and minimal polynomial added 18 characters in body; edited title Dec 2 answered On the total variation of a differentiable function Dec 2 answered Confusion on Theorem in Kato's book Dec 2 answered Find the adjoint operator of an operator on $C \left [ 0,1 \right ]$ Dec 2 reviewed Looks OK Prove $\frac{1}{2} \|y-x\|^2$ is a strongly convex function Dec 2 comment Triple Integral in mvc No, you do not have $y = x^2 + z^2$ all over $D$. You have $0 \le y \le x^2 + z^2$. Dec 2 answered Find relation between $e^x$ and $x$ Dec 2 answered Triple Integral in mvc Dec 2 revised Proving that a transformation is Unitary added 592 characters in body