A note on the Gauss maps of Cayley-free embeddings into spin(7)-manifolds


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Ünal İ.

DIFFERENTIAL GEOMETRY AND ITS APPLICATIONS, cilt.61, ss.1-8, 2018 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 61
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1016/j.difgeo.2018.07.003
  • Dergi Adı: DIFFERENTIAL GEOMETRY AND ITS APPLICATIONS
  • Sayfa Sayıları: ss.1-8

Özet

We show that a closed, orientable 4-manifold M admits a Cayley-free embedding into flat Spin(7)-manifold R-8 if and only if both the Euler characteristic chi(M) and the signature tau(M) of M vanish. (C) 2018 Elsevier B.V. All rights reserved.