The Frame of Nuclei on an Alexandroff Space
Let O be the frame of open sets of a topological space S, and let (O ) be the frame of nuclei on O . For an Alexandroff space S, we prove that (O ) is spatial iff the infinite binary tree 2 does not embed isomorphically into (S,≤), where ≤ is the specialization preorder of S.
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Autor principal: | Ávila Álvarez, Francisco |
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Outros Autores: | Bezhanishvili, Guram, Morandi, Patrick, Zaldívar Corichi, Luis Ángel |
Formato: | Artículo |
Idioma: | English |
Publicado em: |
2020
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Assuntos: | |
Acesso em linha: | https://link.springer.com/article/10.1007/s11083-020-09528-1 |
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