Results 11 to 20 of about 14,606,458 (293)

Totally real submanifolds of a complex space form

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1996
Totally real submanifolds of a complex space form are studied. In particular, totally real submanifolds of a complex number space with parallel mean curvature vector are classified.
U-Hang Ki, Young Ho Kim
doaj   +2 more sources

Quasi-Einstein Hypersurfaces of Complex Space Forms

open access: yesAdvances in Mathematical Physics, 2020
Based on a well-known fact that there are no Einstein hypersurfaces in a nonflat complex space form, in this article, we study the quasi-Einstein condition, which is a generalization of an Einstein metric, on the real hypersurface of a nonflat complex ...
Xuehui Cui, Xiaomin Chen
doaj   +3 more sources

Momentum-Space Path Integral Approach to Non-Hermitian Symmetry Breaking [PDF]

open access: yesEntropy
A quantum-classical correspondence for non-Hermitian symmetry breaking has recently been established using coordinate-space path integrals, providing a semiclassical understanding of spectral transitions at the level of individual eigenstates.
Zhuo-Ting Cai, Wei Chen
doaj   +2 more sources

Kähler maps of Hermitian symmetric spaces into complex space forms

open access: yesGeometriae Dedicata, 2007
The authors study Kähler immersions of Hermitian symmetric spaces into finite- or infinite-dimensional complex space forms, in particular Kähler immersions of such spaces of noncompact type endowed with their Bergman metrics into the infinite-dimensional hyperbolic space \(\mathbb{C} H^\infty\) or the infinite-dimensional Euclidean space \(\ell^2 ...
Andrea Loi, Antonio José Di Scala
exaly   +5 more sources

Symmetry properties of complex contact space form

open access: yes, 2021
In this paper, some symmetry conditions on complex contact space forms are studied. Definitions of pseudo-symmetry in the Deszcz sense and Ricci-pseudo-symmetry in complex contact manifolds are given. The authors show that a complex contact space form is semi-symmetric if and only if it is locally isometric to CP2n+1(4).
Vanlı, Aysel
core   +4 more sources

Positively curved complex submanifolds immersed in a complex space form [PDF]

open access: yesProceedings of the American Mathematical Society, 1978
The author gives the partial solution for the conjecture; a Kaehler submanifold in a complex space form of constant holomorphic sectional curvature 1 is totally geodesic if ever its holomorphic sectional curvature is greater than
Takehiro Itoh
openaire   +2 more sources

On the $$\Delta $$-property for complex space forms [PDF]

open access: yesAbhandlungen aus dem Mathematischen Seminar der Universität Hamburg, 2021
Inspired by the work of Z. Lu and G. Tian [8], A. Loi, F. Salis and F. Zuddas address in [5] the problem of studying those Kähler manifolds satisfying the $Δ$-property, i.e. such that on a neighborhood of each of its points the $k$-th power of the Kähler Laplacian is a polynomial function of the complex Euclidean Laplacian, for all positive integer $k$.
openaire   +3 more sources

About theory of extended interaction klystron and drift space in the form of medium with complex permittivity [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика, 2021
Purpose of this work is to construct a theory of extended interaction klystron with ordinary distributed resonators, but with a drift space in the form of medium with complex permittivity. Methods.
Funtov, Aleksandr Andreevich
doaj   +1 more source

Optimal Inequalities for Hemi-Slant Riemannian Submersions

open access: yesMathematics, 2022
In the present paper, we establish some basic inequalities involving the Ricci and scalar curvature of the vertical and the horizontal distributions for hemi-slant submersions having the total space a complex space form. We also discuss the equality case
Mehmet Akif Akyol   +3 more
doaj   +1 more source

Differential Geometry of Submanifolds in Complex Space Forms Involving δ-Invariants

open access: yesMathematics, 2022
One of the fundamental problems in the theory of submanifolds is to establish optimal relationships between intrinsic and extrinsic invariants for submanifolds.
Bang-Yen Chen   +2 more
doaj   +1 more source

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