Question

The relationship between analytic and $C^\infty$

score 581 · Answer 1 · 2026-03-26 17:29:17

581

Views

The relationship between analytic and $C^\infty$

Published on 26 Mar 2026 - 17:29

score 67 · Answer 2 · 2026-04-15 19:01:58

67

Views

Can any real/complex number be expressed in the form of $l(l+1)$?

Published on 15 Apr 2026 - 19:01

score 63 · Answer 3 · 2026-04-10 00:59:13

63

Views

Power with complex exponents

Published on 10 Apr 2026 - 0:59

score 66 · Answer 4 · 2026-04-13 19:21:35

66

Views

Is there any way to verify that $1/i = -i$ without using relation $i^2 = -1$?

Published on 13 Apr 2026 - 19:21

score 500 · Answer 5 · 2026-04-12 03:13:53

500

Views

Evaluating the complex limit with indeterminate form

Published on 12 Apr 2026 - 3:13

score 126 · Answer 6 · 2026-04-15 12:23:22

126

Views

Prove all zeros of a polynomial lie in $\{|z| > 1 \}$

Published on 15 Apr 2026 - 12:23

score 35 · Answer 7 · 2026-04-09 07:54:53

35

Views

Problem with equation in complex numbers

Published on 09 Apr 2026 - 7:54

score 777 · Answer 8 · 2026-04-17 13:55:35

777

Views

Find the 4 roots of the equation: $z^{4}+4=0$

Published on 17 Apr 2026 - 13:55

score 577 · Answer 9 · 2026-04-16 01:28:34

577

Views

Prove that $z - \frac{4}{z}$ is purely imaginary if and only if z is purely imaginary or |z|= 2.

Published on 16 Apr 2026 - 1:28

score 40 · Answer 10 · 2026-04-13 15:08:34

40

Views

Is this a complex function?

Published on 13 Apr 2026 - 15:08

score 59 · Answer 11 · 2026-04-12 17:47:17

59

Views

Use of constant $e$ in $e^{i\theta}$ and $e^z$ (notation clarification)

Published on 12 Apr 2026 - 17:47

score 904 · Answer 12 · 2026-04-17 04:24:45

904

Views

Plotting the set of complex numbers that satisfy an inequality

Published on 17 Apr 2026 - 4:24

score 53 · Answer 13 · 2026-04-11 22:40:52

53

Views

Semi-continuity of the value of contour integral in the Argument principle

Published on 11 Apr 2026 - 22:40

score 60 · Answer 14 · 2026-04-16 05:58:21

60

Views

Let $\{{z_1,..,z_5}\}$ Solutions of $z^5=2i$ Find $x^2=\frac{1}{z_1}+...+\frac{1}{z_5}+i$

Published on 16 Apr 2026 - 5:58

score 49 · Answer 15 · 2026-04-16 09:27:53

49

Views

Why $\lim_{n\rightarrow\infty} \mbox{Re}(T_1\xi_n\mid \lambda T_2\xi_n)=\lim_{n\rightarrow\infty} (T_1\xi_n\mid \lambda T_2\xi_n)$?

Published on 16 Apr 2026 - 9:27

List Question

The relationship between analytic and $C^\infty$

Can any real/complex number be expressed in the form of $l(l+1)$?

Power with complex exponents

Is there any way to verify that $1/i = -i$ without using relation $i^2 = -1$?

Evaluating the complex limit with indeterminate form

Prove all zeros of a polynomial lie in $\{|z| > 1 \}$

Problem with equation in complex numbers

Find the 4 roots of the equation: $z^{4}+4=0$

Prove that $z - \frac{4}{z}$ is purely imaginary if and only if z is purely imaginary or |z|= 2.

Is this a complex function?

Use of constant $e$ in $e^{i\theta}$ and $e^z$ (notation clarification)

Plotting the set of complex numbers that satisfy an inequality

Semi-continuity of the value of contour integral in the Argument principle

Let $\{{z_1,..,z_5}\}$ Solutions of $z^5=2i$ Find $x^2=\frac{1}{z_1}+...+\frac{1}{z_5}+i$

Why $\lim_{n\rightarrow\infty} \mbox{Re}(T_1\xi_n\mid \lambda T_2\xi_n)=\lim_{n\rightarrow\infty} (T_1\xi_n\mid \lambda T_2\xi_n)$?

Trending Questions

Popular # Hahtags

Popular Questions