Question

Is the space of $k$-symmetric tensors generated by the "diagonal elements"?

score 255 · Answer 1 · 2026-04-14 04:45:30

255

Views

Is the space of $k$-symmetric tensors generated by the "diagonal elements"?

Published on 14 Apr 2026 - 4:45

score 232 · Answer 2 · 2026-04-10 06:39:33

232

Views

Is a module that is isomorphic to its dual necessarily free?

Published on 10 Apr 2026 - 6:39

score 196 · Answer 3 · 2026-04-15 03:26:23

196

Views

The sign of a permutation defines a homomorphism proof

Published on 15 Apr 2026 - 3:26

score 50 · Answer 4 · 2026-04-12 12:56:29

50

Views

Classify matrix representations of group

Published on 12 Apr 2026 - 12:56

score 45 · Answer 5 · 2026-04-11 17:34:10

45

Views

Adding preservation of distance with group isomorphisms

Published on 11 Apr 2026 - 17:34

score 129 · Answer 6 · 2026-04-29 12:50:22

129

Views

Difference between operator defined on a space and operator represented in a space

Published on 29 Apr 2026 - 12:50

score 946 · Answer 7 · 2026-04-13 19:58:13

946

Views

If a ring has a left identity that is not a right identity, then there must be more than one left identity

Published on 13 Apr 2026 - 19:58

score 164 · Answer 8 · 2026-04-16 14:23:03

164

Views

Sum of idempotent and nilpotent minimal right ideals

Published on 16 Apr 2026 - 14:23

score 49 · Answer 9 · 2026-04-10 19:56:16

49

Views

Does multilinearity hold in multiple component in tensor product and wedge product?

Published on 10 Apr 2026 - 19:56

score 63 · Answer 10 · 2026-04-11 20:12:33

63

Views

Polynomial divibility over finite field

Published on 11 Apr 2026 - 20:12

score 108 · Answer 11 · 2026-04-10 10:55:31

108

Views

A general theory of representation of algebraic structures

Published on 10 Apr 2026 - 10:55

score 379 · Answer 12 · 2026-04-15 04:08:08

379

Views

Set of subsets is a Boolean ring

Published on 15 Apr 2026 - 4:08

score 262 · Answer 13 · 2026-04-12 08:57:25

For which values of $n$ does $\mathbb{Z}/n\mathbb{Z}$ have the property that every non-zero element is either a unit or is nilpotent?

score 200 · Answer 14 · 2026-04-14 14:09:55

200

Views

Showing $\mathbb{Z}[i]/(1+2i) \oplus\mathbb{Z}[i]/(6-i)\cong\mathbb{Z}[i]/(8+11i)$

Published on 14 Apr 2026 - 14:09

score 2.8k · Answer 15 · 2026-04-15 16:40:34

2.8k

Views

For ring homomorphism $\phi:R\to S$, prove that if $R$ is a field and $\phi(R)\neq \left \{0_{S} \right \}$, then $\phi(R)$ is a field.

Published on 15 Apr 2026 - 16:40

List Question

Is the space of $k$-symmetric tensors generated by the "diagonal elements"?

Is a module that is isomorphic to its dual necessarily free?

The sign of a permutation defines a homomorphism proof

Classify matrix representations of group

Adding preservation of distance with group isomorphisms

Difference between operator defined on a space and operator represented in a space

If a ring has a left identity that is not a right identity, then there must be more than one left identity

Sum of idempotent and nilpotent minimal right ideals

Does multilinearity hold in multiple component in tensor product and wedge product?

Polynomial divibility over finite field

A general theory of representation of algebraic structures

Set of subsets is a Boolean ring

For which values of $n$ does $\mathbb{Z}/n\mathbb{Z}$ have the property that every non-zero element is either a unit or is nilpotent?

Showing $\mathbb{Z}[i]/(1+2i) \oplus\mathbb{Z}[i]/(6-i)\cong\mathbb{Z}[i]/(8+11i)$

For ring homomorphism $\phi:R\to S$, prove that if $R$ is a field and $\phi(R)\neq \left \{0_{S} \right \}$, then $\phi(R)$ is a field.

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