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A note on generators of the endomorphism...
Dimitrova, Ilinka...
A note on generators of the endomorphism semigroup of an infinite countable chain by Dimitrova, Ilinka ( Author )
N.A
29-09-2015
In this note, we consider the semigroup O(X) of all order endomorphisms of an infinite chain X and the subset J of O(X) of all transformations α such that |Im(α)|=|X|. For an infinite countable chain X, we give a necessary and sufficient condition on X for O(X)=⟨J⟩ to hold. We also present a sufficient condition on X for O(X)=⟨J⟩ to hold, for an arbitrary infinite chain X.
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https://arxiv.org/abs/1509.08659
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