Subalgebra extensions of partial monounary algebras
Czechoslovak Mathematical Journal, Tome 56 (2006) no. 3, pp. 845-855.

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For a subalgebra ${\mathcal B}$ of a partial monounary algebra ${\mathcal A}$ we define the quotient partial monounary algebra ${\mathcal A}/{\mathcal B}$. Let ${\mathcal B}$, ${\mathcal C}$ be partial monounary algebras. In this paper we give a construction of all partial monounary algebras ${\mathcal A}$ such that ${\mathcal B}$ is a subalgebra of ${\mathcal A}$ and ${\mathcal C}\cong {\mathcal A}/{\mathcal B}$.
Classification : 08A55, 08A60
Mots-clés : partial monounary algebra; subalgebra; congruence; quotient algebra; subalgebra extension; ideal; ideal extension 
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     author = {Jakub{\'\i}kov\'a-Studenovsk\'a, Danica},
     title = {Subalgebra extensions of partial monounary algebras},
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Jakubíková-Studenovská, Danica. Subalgebra extensions of partial monounary algebras. Czechoslovak Mathematical Journal, Tome 56 (2006) no. 3, pp. 845-855. https://geodesic-test.mathdoc.fr/item/CMJ_2006__56_3_a3/