Minimal volume invariants, topological sphere theorems and biorthogonal curvature on 4-manifolds
Sign Up to like & getrecommendations! Published in 2018 at "Mathematische Nachrichten"
DOI: 10.1002/mana.201700041
Abstract: The goal of this article is to establish estimates involving the Yamabe minimal volume, mixed minimal volume and some topological invariants on compact 4-manifolds. In addition, we provide topological sphere theorems for compact submanifolds of… read more here.
Keywords: volume; invariants topological; volume invariants; sphere theorems ... See more keywords
Semi-separation axioms of the infinite Khalimsky topological sphere
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DOI: 10.1016/j.topol.2019.107006
Abstract: Abstract In this paper we denote by ( ( Z 2 ) ⁎ , ( κ 2 ) ⁎ ) the Alexandroff one point compactification of the Khalimsky (K-, brevity) plane. We often call this… read more here.
Keywords: space; semi separation; topological sphere; separation axioms ... See more keywords