Results 41 to 50 of about 4,276,702 (282)

Molecular Characterization of the Native (Non-Linked) CD160–HVEM Protein Complex Revealed by Initial Crystallographic Analysis

open access: yesCrystals, 2021
An increasing number of surface-exposed ligands and receptors acting on immune cells are being considered as a starting point in drug development applications.
Simona Lenhartová   +5 more
doaj   +1 more source

Isotropic Immersions of Complex Space Forms into Real Space Forms and Mean Curvatures [PDF]

open access: yesBulletin of the Polish Academy of Sciences Mathematics, 2004
First, the author finds a sufficient condition for an isotropic immersion of a complex space form into a real space form to be parallel. Then he extends the result to isotropic immersions of quaternionic space forms into real space forms. In each case, the sufficient condition is expressed in terms of the mean curvature of the submanifold, its ...
openaire   +2 more sources

An application of stress energy tensor to the vanishing theorem of differential forms

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1988
The author applies the stress energy of differential forms to study the vanishing theorems of the Liouville type. It is shown that for a large class of underlying manifolds such as the Euclidean n-space, the complex n-space, and the complex hyperbolic ...
Kairen Cai
doaj   +1 more source

A geometric model of linear fractional transformations

open access: yesДифференциальная геометрия многообразий фигур, 2022
A model of linear fractional transformations of the complex plane in the form of points of the complex three-dimensional projective space without a linear “forbidden” quadric is presented.
S.V. Matsievsky
doaj   +1 more source

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 ...
LOI, ANDREA, DI SCALA A. J.
openaire   +4 more sources

Maslovian Lagrangian immersions of real space forms into complex space forms

open access: yesJapanese journal of mathematics. New series, 2004
Consider a Lagrangian immersion, i.e., an immersion of a Riemannian manifold \(M\) into a Kähler \(n\)-manifold \(\overline{M}\) such that it is an isometric immersion whose complex structure \(J\) of \(\overline{M}\) interchanges each tangent space of \(M\) with its corresponding normal space.
Chen, Bang-Yen, Garay, Oscar J.
openaire   +3 more sources

Second order parallel tensor in real and complex space forms

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1989
Levy's theorem ‘A second order parallel symmetric non-singular tensor in a real space form is proportional to the metric tensor’ has been generalized by showing that it holds even if one assumes the second order tensor to be parallel (not necessarily ...
Ramesh Sharma
doaj   +1 more source

The Real Meaning of Complex Minkowski-Space World-Lines

open access: yes, 2009
In connection with the study of shear-free null geodesics in Minkowski space, we investigate the real geometric effects in real Minkowski space that are induced by and associated with complex world-lines in complex Minkowski space.
Adamo T M   +9 more
core   +1 more source

Some characterizations of Pseudo-Complex space forms

open access: yesCommunications, Faculty Of Science, University of Ankara Series A1Mathematics and Statistics, 1984
In Duke Math. J. 40, 797-799 (1973; Zbl 0274.53021) the reviewer and \textit{K. Ogiue} proved that a Kähler manifold is a complex space-form if and only if it has constant anti-holomorphic sectional curvature. In this article, the authors extend this result to a pseudo-Kähler manifold.
Nagaich, R. K., Husain, S. I.
openaire   +3 more sources

On generalized complex space forms satisfying certain curvature conditions

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2016
We study Ricci soliton $(g,V,\lambda)$ of generalized complex space forms when the Riemannian, Bochner and $W_{2}$ curvature tensors satisfy certain curvature conditions like semi-symmetric, Einstein semi-symmetric, Ricci pseudo symmetric and Ricci ...
M.M. Praveena, C.S. Bagewadi
doaj   +1 more source

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