New gap results on the 4‐dimensional sphere

DOI10.1002/mana.201600219zbMath1381.53075OpenAlexW2762238479MaRDI QIDQ4601794

Allan G. Freitas, Antonio Rosivaldo Gonçalves, Ezequiel R. Barbosa

Publication date: 24 January 2018

Published in: Mathematische Nachrichten (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1002/mana.201600219

zbMATH Keywords

Ricci curvatureEinstein manifoldspositive sectional curvature4-dimensional manifolds

Mathematics Subject Classification ID

Special Riemannian manifolds (Einstein, Sasakian, etc.) (53C25) Methods of global Riemannian geometry, including PDE methods; curvature restrictions (53C21)