Yazar "Carriazo, A." seçeneğine göre listele

Listeleniyor 1 - 3 / 3
  • Küçük Resim Yok
    Öğe
    A New Type of Almost Contact Manifolds.
    (2016) Ayar, Gülhan; Carriazo, A.; Aktan, N.
    The purpose of this paper is to study the Singuler Semi-Riemannian Almost Contact manifolds, The geometry of manifolds with degenerate indefnite metrics has becn studied by Demir Küpeli [I]. In that book it is shown that a manifold M with a degenerate indefinit metric g admits a geometric structure if and only if g is Lie parallel along the vector fields on M. In this case we call (M, g) a Singular Semi-Riemannian manifold. Then it is possible to attach a nondegenerate tangent bundle to (M, g) which admits a connection whose curvature tensor satisfies the usual identities of the curvature tensor of Levi Civita connection. We cald this connection the Kozsul Connection of (M, g). In this talk we will present Singuler Semi-Riemannian manifolds (introduced by Demir Küpeli in [1] ) with an adapted almost contact strueture. We will study the main facts about such a structure, with some examples.
  • Küçük Resim Yok
    Öğe
    On Singular semi-Riemannian Almost Contact Manifolds.
    (2017) Ayar, Gülhan; Carriazo, A.; Aktan, N.
    In this contribution we introduce and study singular semi-Riemannian aimost contact manifolds, by considcring Demir Kupeli’s book on singular semi-Riemannian geometry [5]. We also provide somc examples.
  • Küçük Resim Yok
    Öğe
    Singular Semi-Riemannian Almost Contact Manifolds.
    (2015) Ayar, Gülhan; Carriazo, A.; Aktan, N.
    İn this talk we will present singular semi-Riemannian manifolds (introduced by D. N. Kııpeli in [1]) with an adapted almost contact structure. We will study the main facts about such a structure, with some examples. Finally, we will focus on some curvature properties.