Results 31 to 40 of about 430,965 (263)

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

Chen-Type Inequalities for PS-Submanifolds in Complex Space Forms

open access: yesAxioms
In this paper, we investigate Chen’s δ-invariant for partially slant (PS) submanifolds of complex space forms. A PS-submanifold admits an orthogonal decomposition of the tangent bundle into a proper slant distribution and an arbitrary ambiguous ...
Md Aquib
doaj   +1 more source

Chow transformation of coherent sheaves

open access: yesComplex Manifolds, 2023
We define a dual of the Chow transformation of currents on any complex projective manifold. This integral transformation is a factor of a left inverse of the Chow transformation and its composition with the Chow transformation is a right inverse of a ...
Méo Michel
doaj   +1 more source

Kaehler Submanifolds of Complex Space Forms

open access: yesTokyo Journal of Mathematics, 1987
Under the notion ``diastasis'' introduced by \textit{E. Calabi} [Ann. Math., II. Ser. 58, 1-23 (1953; Zbl 0051.131)] the author proves the following theorem: Any two complex space forms of different types have no Kaehler submanifold in common, that is, (1) a Kaehler submanifold of \({\mathbb{C}}^ N\) cannot be a Kaehler submanifold of any complex ...
openaire   +3 more sources

Canonisation reper of complex of lines of theree-dimensional flag

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2016
The paper studies the three-parameter geometric image of the line - a complex of line of three-dimensional space of the flag. It identifies the main forms that depend linearly on three basic parameters diferentials.
A.T. Musin
doaj   +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

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Real hypersurfaces of indefinite Kaehler manifolds

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1993
We show the existence of ( ϵ )-almost contact metric structures and give examples of ( ϵ )-Sasakian manifolds. Then we get a classification theorem for real hypersurfaces of indefinite complex space-forms with parallel structure vector field.
A. Bejancu, K. L. Duggal
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

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