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Isomorphism between finitely generated semigroups

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#reference-request #semigroups #semigroup-homomorphism
632
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$f (e_G )=e_H $ is necessary for Monoid homomorphisms

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#abstract-algebra #group-theory #group-homomorphism #monoid #semigroup-homomorphism
90
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Proving an alternative version of Lallement's Lemma

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#semigroups #semigroup-homomorphism
65
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isomorphism generalized semigroup

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#abstract-algebra #semigroups #semigroup-of-operators #finite-semigroups #semigroup-homomorphism
112
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Prove that there is no bijective homomorphism from $\left(\mathbb{Q},\ +\right)$ to $\left(\mathbb{Q_+^*},\ \times \right)$

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#abstract-algebra #semigroups #magma #semigroup-homomorphism
46
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Proper class of operations

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#abstract-algebra #products #binary-operations #semigroup-homomorphism
85
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About monoid homomorphism

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#semigroups #monoid #semigroup-homomorphism
235
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Exercise 1 pg 33 from "Algebra - T. W. Hungerford" - example for a semigroup-hom but not monoid-hom..

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#abstract-algebra #proof-verification #proof-writing #monoid #semigroup-homomorphism
70
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J-class properties under a surjective homomorphism

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#abstract-algebra #semigroups #finite-semigroups #semigroup-homomorphism
157
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Proving a class of languages is closed under union when it closed under concatenation, (inverse) homomorphic images, and intersections.

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#logic #computer-science #formal-languages #regular-language #semigroup-homomorphism
30
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Algorithm for computing the collection of all string homomorphisms $f$ such that $f(s) = t$ for fixed strings $s,t$

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#algorithms #computer-science #formal-languages #programming #semigroup-homomorphism
70
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How many functions from $\mathbb{N}\cup\{0\}$ to $\mathbb{N}\cup\{0\}$ have $\phi(ab) = \phi(a) + \phi(b)$?

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#functions #functional-equations #natural-numbers #semigroups #semigroup-homomorphism
106
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Is the space of monoid homomorphisms on a free monoid free?

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#abstract-algebra #monoid #semigroup-homomorphism
331
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free semi-group

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#semigroups #semigroup-homomorphism
133
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General properties? of divisibility of semigroups

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#divisibility #semigroups #semigroup-homomorphism

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