Results 161 to 170 of about 15,601 (190)

Conformal Generic Riemannian Maps from Almost Hermitian Manifolds

Turkish journal of science, 2021
In the present paper, the notion of conformal generic Riemannian maps from almost Hermitian manifolds onto Riemannian manifolds is defined. Examples for this type conformal maps are given.
Şener Yanan
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On the Constant Type of Almost Hermitian Manifolds

Mathematical Notes, 2000
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Kirichenko, V. F., Tret'yakova, I. V.
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On the Submanifolds of an Almost Para-Hermitian Manifold

Acta Mathematica Hungarica, 1999
An almost para-Hermitian manifold \((\overline M,\overline J, \overline g)\) is a differentiable manifold \(\overline M\) endowed with an almost product structure \(\overline J\), that is, a tensor field \(\overline J\) of type \((1,1)\) obeying \(\overline J\circ\overline J=Id\), and a pseudo-Riemannian metric \(\overline g\) such that \(\overline g ...
Etayo, F., Fioravanti, M., Trías, U. R.
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Space of Affine Connections of an Almost Hermitian Manifold

Journal of Mathematical Sciences, 2023
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Gorginyan, Yu. A., Ignatochkina, L. A.
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Pointwise semi-slant lightlike submanifolds of indefinite almost Hermitian manifolds

Asian-European Journal of Mathematics
In this paper, we investigate pointwise semi-slant lightlike submanifolds within the framework of indefinite almost Hermitian manifolds. After providing definition, we obtain classification results for the existence of pointwise semi-slant lightlike ...
A. Shrivastava, V. Khan, Sangeet S. Kumar   +2 more
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The deformed Hermitian-Yang-Mills equation on almost Hermitian manifolds

Science China Mathematics, 2020
In this paper, we consider the deformed Hermitian-Yang-Mills equation on closed almost Hermitian manifolds. In the case of the hypercritical phase, we derive a priori estimates under the existence of an admissible C\documentclass[12pt]{minimal ...
Liding Huang, Jiao-Ling Zhang, Xi Zhang
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ALMOST EINSTEIN-HERMITIAN MANIFOLDS

JP Journal of Geometry and Topology
In this paper, we show that every almost Einstein-Hermitian 4-manifold (i.e., almost Hermitian 4-manifold with -invariant Ricci tensor and harmonic Weyl tensor) is either Einstein or Hermitian. Consequently, we obtain that any almost Einstein-Hermitian 4-manifold which is not Einstein must be Hermitian and that every almost Einstein-Hermitian 4 ...
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Isometric Immersions of almost Hermitian Manifolds

Canadian Journal of Mathematics, 1969
The Lefschetz theorem on hyperplane sections, as proved by Andreotti and Frankel (1), depends upon the following result.THEOREM. If M is a non-singular affine algebraic variety of real dimension 2k of complex n-space, thenThis theorem, which is interesting in itself, has been strengthened by Milnor (7), who showed that M has the homotopy type of a k ...
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On the Twistor Spaces of Almost Hermitian Manifolds

Annals of Global Analysis and Geometry, 1998
Given an almost Hermitian manifold \((M,g,J)\), denote by \({\mathcal G}_k(M)\) the Grassmann bundle of \(J\)-invariant \(2k\)-subspaces of \(TM\). Any unitary connection \(\omega\) on \(M\) gives rise to a splitting of \(T{\mathcal G}_k(M)\) into vertical and horizontal parts which allows one to introduce four almost complex structures \(J_{\pm}\) and
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THE SPECTRAL GEOMETRY OF SOME ALMOST HERMITIAN MANIFOLDS

SUT Journal of Mathematics, 1996
Let \((M,g,J)\) [resp. \(M',g',J')]\) be a compact almost Hermitian manifold satisfying certain additional conditions, where \(M\) is a \(2n\)-dimensional manifold, \(g\) (resp. \(g')\) a Hermitian metric and \(J\) (resp. \(J')\) an almost Hermitian structure. Almost \(L\) structures [for the definition, see \textit{L.
Hsiung, Chuan-Chih, Yang, Wenmao, Xiong, Bonnie   +2 more
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