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A unique atom in \([C(E),C_\alpha(E)]\) - MaRDI portal

A unique atom in \([C(E),C_\alpha(E)]\) (Q2721560)

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scientific article; zbMATH DE number 1613186
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English
A unique atom in \([C(E),C_\alpha(E)]\)
scientific article; zbMATH DE number 1613186

    Statements

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    10 June 2002
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    atoms
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    congruence lattices
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    full transformation semigroups
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    A unique atom in \([C(E),C_\alpha(E)]\) (English)
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    For a given set \(X\) and a given non-trivial equivalence \(E\) on \(X\), a congruence \(C_*(E)\) on the full transformation semigroup \(T_E(X)\) is obtained. It is shown that \(C_*(E)\) is a unique atom in the complete sublattice \([C(E),C_\alpha(E)]\) of the congruence lattice of \(T_E(X)\).
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