On deformations of G(2)-structures by Killing vector fields
ADVANCES IN GEOMETRY, cilt.14, sa.4, ss.683-690, 2014 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 14 Sayı: 4
- Basım Tarihi: 2014
- Doi Numarası: 10.1515/advgeom-2014-0012
- Dergi Adı: ADVANCES IN GEOMETRY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.683-690
- Anahtar Kelimeler: G(2) structure, 3-Sasakian manifold, MANIFOLDS
- Anadolu Üniversitesi Adresli: Evet
Özet
In this paper, vectorial type deformations of a 7-dimensional manifold with structure group G 2 are considered. The fundamental 3-form of such a manifold is deformed by a vector field, and the new cross product and the new Levi-Civita covariant derivation of the new metric are obtained in terms of the old ones. An example of a 7-dimensional manifold with structure group G 2 which is in the widest class W in the classification of Fernandez and Gray is given; this manifold has a nontrivial Killing vector field corresponding to the new metric.