Question

Choose the correct option if $ y=e^{2\pi i/7} $and $ x =y+y^2+y^4$ .

score 69 · Answer 1 · 2026-04-16 22:34:29

69

Views

Choose the correct option if $ y=e^{2\pi i/7} $and $ x =y+y^2+y^4$ .

Published on 16 Apr 2026 - 22:34

score 241 · Answer 2 · 2026-04-18 16:37:36

241

Views

Singular points of orders of a number field

Published on 18 Apr 2026 - 16:37

score 612 · Answer 3 · 2026-04-11 11:52:48

612

Views

In what algebraic structure does repeated addition equal multiplication?

Published on 11 Apr 2026 - 11:52

score 245 · Answer 4 · 2026-04-09 09:58:28

245

Views

Are there discussion sites online for university level mathematics?

Published on 09 Apr 2026 - 9:58

score 170 · Answer 5 · 2026-04-16 00:19:22

170

Views

$p(x)x^n+q(x)(1-x)^n=1$ for some $p(x), q(x)\in \mathbb{Z}[x]$, what explicitly $p(x), q(x)$ are?

Published on 16 Apr 2026 - 0:19

score 183 · Answer 6 · 2026-04-10 01:33:43

183

Views

Existence of finite Galois extension

Published on 10 Apr 2026 - 1:33

score 45 · Answer 7 · 2026-04-14 00:21:44

45

Views

Express an even permutation $\alpha$ as a string of $(13456)$ and $(132)$?

Published on 14 Apr 2026 - 0:21

score 482 · Answer 8 · 2026-04-08 20:06:24

482

Views

Show that the function is bijective in group theory

Published on 08 Apr 2026 - 20:06

score 158 · Answer 9 · 2026-04-15 09:39:22

158

Views

Determine if this is a field

Published on 15 Apr 2026 - 9:39

score 38 · Answer 10 · 2026-04-12 07:41:47

38

Views

Presentation of $\mathbb{Z}_9\rtimes\mathbb{Z}_3$ (Semi direct product of $\mathbb{Z}_9$ and $\mathbb{Z}_3$)

Published on 12 Apr 2026 - 7:41

score 993 · Answer 11 · 2026-04-14 16:22:32

993

Views

Converse of "every finite group has a finite exponent"?

Published on 14 Apr 2026 - 16:22

score 74 · Answer 12 · 2026-04-16 10:08:08

74

Views

Let $a \in G$ be a finite ordered element and let $n \in \mathbb{Z}$. Prove that $a$ and $a^n$ have equal orders iff $\gcd\big(n, o(a)\big)=1$.

Published on 16 Apr 2026 - 10:08

score 59 · Answer 13 · 2026-04-11 08:36:30

59

Views

Is it possible to draw a homomorphism between all groups of the same finite order

Published on 11 Apr 2026 - 8:36

score 142 · Answer 14 · 2026-04-20 22:36:15

142

Views

How many operations are required to check the congruence $(x+a)^n \equiv x^n + a \pmod{x^r-1, n}$?

Published on 20 Apr 2026 - 22:36

score 1.4k · Answer 15 · 2026-04-14 18:30:42

1.4k

Views

What does the notation of “1=/= 0” mean for “Let R be a ring with unity 1=/= 0”?

Published on 14 Apr 2026 - 18:30

List Question

Choose the correct option if $ y=e^{2\pi i/7} $and $ x =y+y^2+y^4$ .

Singular points of orders of a number field

In what algebraic structure does repeated addition equal multiplication?

Are there discussion sites online for university level mathematics?

$p(x)x^n+q(x)(1-x)^n=1$ for some $p(x), q(x)\in \mathbb{Z}[x]$, what explicitly $p(x), q(x)$ are?

Existence of finite Galois extension

Express an even permutation $\alpha$ as a string of $(13456)$ and $(132)$?

Show that the function is bijective in group theory

Determine if this is a field

Presentation of $\mathbb{Z}_9\rtimes\mathbb{Z}_3$ (Semi direct product of $\mathbb{Z}_9$ and $\mathbb{Z}_3$)

Converse of "every finite group has a finite exponent"?

Let $a \in G$ be a finite ordered element and let $n \in \mathbb{Z}$. Prove that $a$ and $a^n$ have equal orders iff $\gcd\big(n, o(a)\big)=1$.

Is it possible to draw a homomorphism between all groups of the same finite order

How many operations are required to check the congruence $(x+a)^n \equiv x^n + a \pmod{x^r-1, n}$?

What does the notation of “1=/= 0” mean for “Let R be a ring with unity 1=/= 0”?

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