alvoultai

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139 Questions

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10	How to solve $x^3=-1$?
8	How to prove $\|z_1-z_2\| \geq \|z_1\|-\|z_2\|$ in other way than this?
6	Similar matrices have the same eigenvalues with the same geometric multiplicity
5	How to show $( \frac{p}{q})=1 \Leftrightarrow ( \frac{q}{p})=1 $?
5	How to show that e.g. $\cos(z)$ is analytic using Cauchy- Riemann differential equations?

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1,097 Reputation

+3	Could we define multiplication of “complex numbers” in this way?
+3	How to show that $f(x)=x^2$ is continuous at $x=1$?
+25	How to show $( \frac{p}{q})=1 \Leftrightarrow ( \frac{q}{p})=1 $?
+5	Can you solve current version of Quadratic reciprocity from Gauss version?

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2 Answers

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1	How to prove that the composition $T_{b_2} \circ T_{b_1} $ of the convolution operators $T_{b_2}$ and $T_{b_1}$ is the convolution operator $T_b$?
0	How to show that $f(x)=x^2$ is continuous at $x=1$?

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1 homework × 37	0 number-theory × 7
1 linear-algebra × 18	0 calculus × 7
0 elementary-number-theory × 34	0 complex-numbers × 6
0 complex-analysis × 25	0 measure-theory × 5
0 fourier-analysis × 11	0 integration × 3

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