Shubhodip Mondal
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 Aug 4 awarded Nice Answer May 25 awarded Yearling Dec 21 awarded Constituent Dec 12 comment Product of sums equal to sum of products ${}{}{}{}{}{}{}{}$ Dec 12 comment Product of sums equal to sum of products Yes.(I had 10 more to go.) Dec 11 comment Ex. 1.3.10 in Tao's Additive Combinatorics Well yeah.But I you should check if image of 1/1-z is (contained in) a simply connected space not containing zero as f^k = exp k log f Dec 10 comment If $f(z)$ is a polynomial function of degree $n \ge 2$, prove that the sum of the residues of $\frac{1}{f(z)}$ is zero Haha, or in order to do it directly, use Lagrange's Interpolation. Dec 10 comment Ex. 1.3.10 in Tao's Additive Combinatorics added an answer. do you have any comments? Dec 9 answered Ex. 1.3.10 in Tao's Additive Combinatorics Dec 9 awarded Caucus Dec 5 revised Investigate whether there exists a function $f : [a,b]\rightarrow R$ that is continuous and that takes exactly twice each of its values. edited body Dec 5 answered Investigate whether there exists a function $f : [a,b]\rightarrow R$ that is continuous and that takes exactly twice each of its values. Dec 5 comment Investigate whether there exists a function $f : [a,b]\rightarrow R$ that is continuous and that takes exactly twice each of its values. The accepted solution is not helpful Dec 5 answered one-to-one holomorphic map of $\mathbb{C}$ onto itself must be of the form $az+b$? Nov 30 revised If $f$ is ananlytic in $D_r(z_0)$\ {$z_0$} and $Ref(z)>0$ for all $z\in D_r(z_0)$\ {$z_0$} then $z_0$ is a removable singularity deleted 2 characters in body Nov 30 answered If $f$ is ananlytic in $D_r(z_0)$\ {$z_0$} and $Ref(z)>0$ for all $z\in D_r(z_0)$\ {$z_0$} then $z_0$ is a removable singularity Nov 27 revised $f$ is either univalent or constant added 62 characters in body Nov 27 comment $f$ is either univalent or constant Rouche's theorem. Nov 27 answered $f$ is either univalent or constant Nov 24 answered Geometrical Interpretation of Cauchy Riemann equations?