Results 21 to 30 of about 1,018 (69)
Left-invariant Riemann solitons of three-dimensional Lorentzian Lie groups [PDF]
arXiv, 2021 In this note, we completely classify left-invariant Riemann solitons on three-dimensional Lorentzian Lie groups.
arxiv
Issues of Analysis, 2018 In this paper, we study generic lightlike submanifolds of an indefinite Kaehler manifold M . We provide several new results on such a generic lightlike submanifold M equipped with an induced structure tensor F on M induced by the almost complex structure
D. Jin, J. Lee
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Osculating curves in 4-dimensional semi-Euclidean space with index 2
Open Mathematics, 2017 In this paper, we give the necessary and sufficient conditions for non-null curves with non-null normals in 4-dimensional Semi-Euclidian space with indeks 2 to be osculating curves.
İlarslan Kazim +2 more
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On Chen invariants and inequalities in quaternionic geometry
, 2013 In this paper we give a survey of main results concerning Chen inequalities for submanifolds in quaternionic space forms and propose some open problems in the field for further research.AMS Subject Classification:53C15, 53C25, 53C40.
G. Vîlcu
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Inequalities on the Ricci curvature
, 2015 We improve Chen-Ricci inequalities for a Lagrangian submanifold Mn of dimension n (n 2) in a 2n -dimensional complex space form ̃ M2n(4c) of constant holomorphic sectional curvature 4c with a semi-symmetric metric connection and a Legendrian submanifold ...
A. Mihai
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Semi-invariant warped product submanifolds of cosymplectic manifolds
, 2012 In this article, we obtain the necessary and sufficient conditions that the semi-invariant submanifold to be a locally warped product submanifold of invariant and anti-invariant submanifolds of a cosymplectic manifold in terms of canonical structures T ...
M. Khan, S. Uddin, R. Sachdeva
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Ricci solitons on QR-hypersurfaces of a quaternionic space form ℚn
Acta Universitatis Sapientiae: Mathematica, 2016 The purpose of this paper is to study Ricci solitons on QR-hypersurfaces M of a quaternionic space form ℚn such that the shape operator A with respect to N has one eigenvalue.
Nazari Z., Abedi E.
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Helices in the n-dimensional Minkowski spacetime
Results in Physics, 2019 In this work, we find position vectors of non-null helices in the n-dimensional Minkowski spacetime. We present methods to generate helices from polynomial curves.
Bulent Altunkaya
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An Inequality on Quaternionic CR-Submanifolds
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2018 We establish an inequality for an intrinsic invariant of Chen-type defined on quaternionic CR-submanifolds in quaternionic space forms, in terms of the squared mean curvature, the main extrinsic invariant, by using the method of constrained extrema.
Macsim Gabriel, Mihai Adela
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Lagrangian geometry of the Gauss images of isoparametric hypersurfaces in spheres
Complex Manifolds, 2019 The Gauss images of isoparametric hypersufaces of the standard sphere Sn+1 provide a rich class of compact minimal Lagrangian submanifolds embedded in the complex hyperquadric Qn(ℂ).
Miyaoka Reiko, Ohnita Yoshihiro
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