Results 51 to 60 of about 3,068 (120)
Linear Connections on Normal Almost Contact Manifolds with Norden Metric [PDF]
, 2010 Families of linear connections are constructed on almost contact manifolds with Norden metric. An analogous connection to the symmetric Yano connection is obtained on a normal almost contact manifold with Norden metric and closed structural 1-form.
Teofilova, Marta
core +2 more sources
Matrix Lie groups as 3-dimensional almost contact B-metric manifolds [PDF]
, 2015 The object of investigation are Lie groups considered as almost contact B-metric manifolds of the lowest dimension three. It is established a correspondence of all basic-class-manifolds of the Ganchev-Mihova-Gribachev classification of the studied ...
Manev, Hristo
core +1 more source
Prolongations of F‐structure to the tangent bundle of order 2
, 1991 International Journal of Mathematics and Mathematical Sciences, Volume 16, Issue 1, Page 201-204, 1993.
Lovejoy S. Das
wiley +1 more source
Hofer's diameter and Lagrangian intersections [PDF]
arXiv, 1998 We prove that the group of Hamiltonian diffeomorphisms of the 2-sphere has infinite diameter with respect to Hofer's metric. Our approach is based on the theory of Lagrangian intersections.
arxiv
On Almost Generalized Weakly Symmetric LP-Sasakian Manifolds
Annals of the West University of Timisoara: Mathematics and Computer Science, 2017 The purpose of this paper is to introduce the notions of an almost generalized weakly symmetric LP-Sasakian manifolds and an almost generalized weakly Ricci-symmetric LP-Sasakian manifolds.
Baishya Kanak Kanti +1 more
doaj +1 more source
Kobayashi hyperbolicity of almost complex manifolds [PDF]
arXiv, 1998 Our goal here is to give a simple proof of the non integrable version of Brody's characterisation theorem.
arxiv
On the non-existence of tight contact structures [PDF]
arXiv, 1999 We exhibit a 3-manifold which admits no tight contact structure.
arxiv
Marsden-Weinstein reduction for symplectic connections [PDF]
arXiv, 2001 We propose a reduction procedure for symplectic connections with symmetry. This is applied to coadjoint orbits whose isotropy is reductive.
arxiv
On curvature tensors of Norden and metallic pseudo-Riemannian manifolds
Complex Manifolds, 2019 We study some properties of curvature tensors of Norden and, more generally, metallic pseudo-Riemannian manifolds. We introduce the notion of J-sectional and J-bisectional curvature of a metallic pseudo-Riemannian manifold (M, J, g) and study their ...
Blaga Adara M., Nannicini Antonella
doaj +1 more source
Pseudo-holomorphic curves: A very quick overview
Complex Manifolds, 2020 This is a review article on pseudo-holomorphic curves which attempts at touching all the main analytical results. The goal is to make a user friendly introduction which is accessible to those without an analytical background.
Oliveira Gonçalo
doaj +1 more source