Question

A question about semigroup union

score 40 · Answer 1 · 2019-07-18 09:56:26

A question about semigroup union

Published on 18 Jul 2019 - 9:56

score 108 · Answer 2 · 2019-07-22 23:53:50

Right ideal $eS$ in a simple semigroup $S$ without zero, with idempotent $e$ and minimal left ideal $L$ is a minimal right ideal of $S$.

score 56 · Answer 3 · 2019-07-27 01:10:56

56

Views

Adjoining an identity to a cancellative semigroup

Published on 27 Jul 2019 - 1:10

score 99 · Answer 4 · 2019-07-31 14:35:04

99

Views

How to show that $\bigl(A(x) \land B(x) \bigr)\land C(x) \equiv A(x) \land \bigl(B(x)\land C(x) \bigr)?$

Published on 31 Jul 2019 - 14:35

score 282 · Answer 5 · 2026-03-25 05:59:11

282

Views

Semigroup homomorphism

Published on 25 Mar 2026 - 5:59

score 134 · Answer 6 · 2026-03-19 20:10:38

134

Views

Subsemigroup of a finite simple semigroup is simple

Published on 19 Mar 2026 - 20:10

score 252 · Answer 7 · 2026-03-25 04:41:47

252

Views

Are there $f:\mathbb{R}^{+}\times\mathbb R^+\rightarrow\mathbb{R}^{+}$ associative and not conjugate to the addition?

Published on 25 Mar 2026 - 4:41

score 58 · Answer 8 · 2019-08-19 21:10:31

58

Views

In the group $\bigoplus_{j=-\infty}^{\infty} G$ does $a \cdot_k b = (a_{j+k} b_j)$ also form a group?

Published on 19 Aug 2019 - 21:10

score 184 · Answer 9 · 2019-08-22 19:16:48

184

Views

A binary operation on $G$ satisfies $a\cdot(b\cdot c)=(a\cdot b)\cdot (a\cdot c)$ and has an identity, is it a group?

Published on 22 Aug 2019 - 19:16

score 536 · Answer 10 · 2019-09-03 23:41:42

536

Views

Prove an inverse and identity of a group exists

Published on 03 Sep 2019 - 23:41

score 1.1k · Answer 11 · 2026-03-22 10:43:53

1.1k

Views

Prove that * is commutative and associative

Published on 22 Mar 2026 - 10:43

score 714 · Answer 12 · 2026-03-25 02:58:50

714

Views

Proving this non-empty set and binary operation is a group

Published on 25 Mar 2026 - 2:58

score 30 · Answer 13 · 2019-09-10 12:13:12

30

Views

How do the Green's R and L Relations relate with left and right Coset?

Published on 10 Sep 2019 - 12:13

score 1.5k · Answer 14 · 2019-09-11 15:55:59

1.5k

Views

Let $S$ is a semi-group such that $x^2y=y=yx^2$ for all $x,y$ in $S$. Is it a group and if yes, is it abelian?

Published on 11 Sep 2019 - 15:55

score 167 · Answer 15 · 2019-09-12 15:57:50

167

Views

If every group is a normal subgroup of itself, the normal subgroup in what does it become if I now have a semigroup?

Published on 12 Sep 2019 - 15:57

List Question

A question about semigroup union

Right ideal $eS$ in a simple semigroup $S$ without zero, with idempotent $e$ and minimal left ideal $L$ is a minimal right ideal of $S$.

Adjoining an identity to a cancellative semigroup

How to show that $\bigl(A(x) \land B(x) \bigr)\land C(x) \equiv A(x) \land \bigl(B(x)\land C(x) \bigr)?$

Semigroup homomorphism

Subsemigroup of a finite simple semigroup is simple

Are there $f:\mathbb{R}^{+}\times\mathbb R^+\rightarrow\mathbb{R}^{+}$ associative and not conjugate to the addition?

In the group $\bigoplus_{j=-\infty}^{\infty} G$ does $a \cdot_k b = (a_{j+k} b_j)$ also form a group?

A binary operation on $G$ satisfies $a\cdot(b\cdot c)=(a\cdot b)\cdot (a\cdot c)$ and has an identity, is it a group?

Prove an inverse and identity of a group exists

Prove that * is commutative and associative

Proving this non-empty set and binary operation is a group

How do the Green's R and L Relations relate with left and right Coset?

Let $S$ is a semi-group such that $x^2y=y=yx^2$ for all $x,y$ in $S$. Is it a group and if yes, is it abelian?

If every group is a normal subgroup of itself, the normal subgroup in what does it become if I now have a semigroup?

Trending Questions

Popular # Hahtags

Popular Questions