Results 21 to 30 of about 5,383,504 (242)

On real hypersurfaces of a complex projective space [PDF]

open access: yesMathematische Zeitschrift, 1989
In this article the authors continue their work on real hypersurfaces in complex projective spaces [part I, see Math. Z. 202, 299-311 (1989; Zbl 0661.53015), part II, see Tsukuba J. Math. 15, 547-561 (1991; Zbl 0762.53039)]. The main purpose of this paper is to provide sufficient and necessary conditions for a real hypersurface \(M\) of a complex ...
Kimura, Makoto, Maeda, Sadahiro
openaire   +5 more sources

Are There Any Natural Physical Interpretations for Some Elementary Inequalities?

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2022
We inquire whether there are some fundamental interpretations of elementary inequalities in terms of curvature of a three-dimensional smooth hypersurface in the four-dimensional real ambient space.
Bosko Wladimir G., Suceavă Bogdan D.
doaj   +1 more source

Filling Real Hypersurfaces by Pseudoholomorphic Discs [PDF]

open access: yesJournal of Geometric Analysis, 2008
We study pseudoholomorphic discs with boundaries attached to a real hypersurface in an almost complex manifold. We give sufficient conditions for filling a one sided neighborhood of the hypersurface by the discs.
Sukhov, Alexandre, Tumanov, Alexander
openaire   +2 more sources

The Nonimbeddability of Real Hypersurfaces in Spheres [PDF]

open access: yesProceedings of the American Mathematical Society, 1988
It is shown that there exist real analytic real hypersurfaces in C
openaire   +3 more sources

On pseudo-Einstein real hypersurfaces [PDF]

open access: yesAdvances in Geometry, 2019
Abstract Let M be a real hypersurface of a complex space form Mn (c) with c ≠ 0 and n ≥ 3. We show that the Ricci tensor S of M satisfies S(X, Y) = ag(X, Y) for all vector fields X and Y on the holomorphic distribution, a being a constant, if and only if M is a pseudo-Einstein real hypersurface.
openaire   +2 more sources

Computing the real isolated points of an algebraic hypersurface [PDF]

open access: yesProceedings of the 45th International Symposium on Symbolic and Algebraic Computation, 2020
Let $\mathbb{R}$ be the field of real numbers. We consider the problem of computing the real isolated points of a real algebraic set in $\mathbb{R}^n$ given as the vanishing set of a polynomial system. This problem plays an important role for studying rigidity properties of mechanism in material designs.
Le, Huu Phuoc   +2 more
openaire   +2 more sources

Homogeneous real hypersurfaces [PDF]

open access: yesMathematical Research Letters, 1995
Let \(M\) be an analytic real hypersurface through the origin in \(\mathbb{C}^n\). The hypersurface \(M\) is called weighted homogeneous if it is locally equivalent, via a biholomorphic map which preserves the origin, to a hypersurface given by an equation of the form \(P(z, \overline z) = 0\), where \(P\) is a polynomial which is homogeneous with ...
openaire   +1 more source

The Viro Method for Construction of Piecewise Algebraic Hypersurfaces

open access: yesAbstract and Applied Analysis, 2013
We propose a new method to construct a real piecewise algebraic hypersurface of a given degree with a prescribed smoothness and topology. The method is based on the smooth blending theory and the Viro method for construction of Bernstein-Bézier algebraic
Yisheng Lai, Weiping Du, Renhong Wang
doaj   +1 more source

On Irreducible Components of Real Exponential Hypersurfaces [PDF]

open access: yesArnold Mathematical Journal, 2017
Some minor changes.
Vorobjov, Nicolai, Riener, Cordian
openaire   +3 more sources

A characterization of a certain real hypersurface of type $({\rm A}_2)$ in a complex projective space [PDF]

open access: yes, 2017
summary:In the class of real hypersurfaces $M^{2n-1}$ isometrically immersed into a nonflat complex space form $\widetilde {M}_n(c)$ of constant holomorphic sectional curvature $c$ $(\ne 0)$ which is either a complex projective space $\mathbb {C}P^n(c ...
Kim, Byung Hak   +2 more
core   +1 more source

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