List questions from roots-of-unity

Published on 15 Apr 2017 - 7:10

74

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Roots of unity. Why is this function between $G_n$, $G_m$ bijective?

Published on 15 Apr 2017 - 18:49

88

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Gauss sum variation $\sum_{n=0}^{p-1}\left(\frac{a+bn}{p}\right)\zeta_p^{cn} = ?$

Published on 25 Mar 2026 - 19:06

245

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Minimal polynomials of real algebraic multiples of roots of unity.

Published on 29 Apr 2017 - 4:19

256

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Calculate product of $n$-th roots of unity

Published on 30 Apr 2017 - 10:15

174

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How can I give the solutions of $\ x^5-7$?

Published on 02 May 2017 - 17:00

1.1k

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sum of (some) $p$-th roots of unity, $p$ prime

Published on 04 May 2017 - 7:58

105

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Roots of Unity form a Real Algebraic Group

Published on 08 May 2017 - 4:37

494

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P-adic roots of unity appearing in expansion of root of polynomial

Published on 08 May 2017 - 11:05

63

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Let $A, B, C \in \mathbb{C}$, $n \in \mathbb{N}$. Prove that if $A^{n} = B^{n} = C^{n} = 1$ and $A + B + C = 0$, then $n$ is a multiple of 3.

Published on 12 May 2017 - 20:26

363

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fifth roots of unity with integer coefficients

Published on 13 May 2017 - 0:41

71

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complex numbers; roots of unity

Published on 14 May 2017 - 14:33

409

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Primitive root of unity in finite local rings

Published on 28 Mar 2026 - 10:19

719

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Intermediate fields of $x^4+1$

Published on 15 May 2017 - 20:09

2.3k

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Why isnt product of nth roots of unity always 1

Published on 16 May 2017 - 12:16

List Question

Complex numbers involving roots of unity

Roots of unity. Why is this function between $G_n$, $G_m$ bijective?

Gauss sum variation $\sum_{n=0}^{p-1}\left(\frac{a+bn}{p}\right)\zeta_p^{cn} = ?$

Minimal polynomials of real algebraic multiples of roots of unity.

Calculate product of $n$-th roots of unity

How can I give the solutions of $\ x^5-7$?

sum of (some) $p$-th roots of unity, $p$ prime

Roots of Unity form a Real Algebraic Group

P-adic roots of unity appearing in expansion of root of polynomial

Let $A, B, C \in \mathbb{C}$, $n \in \mathbb{N}$. Prove that if $A^{n} = B^{n} = C^{n} = 1$ and $A + B + C = 0$, then $n$ is a multiple of 3.

fifth roots of unity with integer coefficients

complex numbers; roots of unity

Primitive root of unity in finite local rings

Intermediate fields of $x^4+1$

Why isnt product of nth roots of unity always 1

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