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Related papers: Real-Smooth Hypersurfaces in $\mathbb{C}^{N+1}$

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In this paper the full and exhaustive algorithm of formation of a smooth molecular Solvent Excluded Surface- SES, and also Solvent Accessible Surface- SAS is presented. These surfaces are a boundary between molecule and solvent. The basis…

Chemical Physics · Physics 2013-03-19 Oleg Kupervasser , N. E. Wanner

We prove several new transversality results for formal CR maps between formal real hypersurfaces in complex space. Both cases of finite and infinite type hypersurfaces are tackled in this note.

Complex Variables · Mathematics 2015-06-26 Bernhard Lamel , Nordine Mir

We develop a globalized Proximal Newton method for composite and possibly non-convex minimization problems in Hilbert spaces. Additionally, we impose less restrictive assumptions on the composite objective functional considering…

Optimization and Control · Mathematics 2021-11-02 Bastian Pötzl , Anton Schiela , Patrick Jaap

Hypersurfaces are studied and classified under multiple additional assumptions in any Riemannian homogeneous space $(\mathbb{C}P^3, g_a)$, including nearly K\"ahler $\mathbb{C}P^3$. Notably, all extrinsically homogeneous hypersurfaces are…

Differential Geometry · Mathematics 2025-03-13 Michaël Liefsoens

We classify the hypersurfaces of dimension n >= 3 with constant sectional curvature in the product spaces R^k x S^{n-k+1} and R^k x H^{n-k+1}, for 2 <= k <= n-1. Our results provide a complete description of these hypersurfaces and extend…

Differential Geometry · Mathematics 2025-10-21 Arnando Carvalho , Ruy Tojeiro

First, we classify proper biharmonic Hopf real hypersurfaces in $\mathbb{C}P^2$. Next, we classify proper biharmonic real hypersurfaces with two distinct principal curvatures in $\mathbb{C}P^n$, where $n\geq 2$. Finally, we prove that…

Differential Geometry · Mathematics 2019-04-15 Toru Sasahara

In this paper we construct a large class of new normal forms for Levi-nondegenerate real hypersurfaces in complex spaces. We adopt a general approach illustrating why these normal forms are natural and which role is played by the celebrated…

Complex Variables · Mathematics 2015-02-16 Dmitri Zaitsev

It was recently shown that under mild assumptions second-order conformally superintegrable systems can be encoded in a $(0,3)$-tensor, called structure tensor. For abundant systems, this approach led to algebraic integrability conditions…

Differential Geometry · Mathematics 2025-04-08 Vicente Cortés , Andreas Vollmer

In this article, we consider $\mathcal{C}^\infty$-smooth real hypersurfaces of infinite type in $\mathbb C^2$. The purpose of this paper is to give explicit descriptions for stability groups of the hypersurface $M(a,\alpha,p,q)$ (see Sec.…

Complex Variables · Mathematics 2014-04-22 Ninh Van Thu

Constant curvature surfaces are constructed from the finite action solutions of the supersymmetric $\mathbb{C}P^{N-1}$ sigma model. It is shown that there is a unique holomorphic solution which leads to constant curvature surfaces: the…

Mathematical Physics · Physics 2016-08-11 Laurent Delisle , Véronique Hussin , İsmeth Yurduşen , Wojtek J. Zakrzewski

We characterize homogeneous hypersurfaces in complex space forms which arise as critical points of a higher order energy functional. As a consequence, we obtain existence and non-existence results for $\mathbb{CP}^n$ and $\mathbb{CH}^n$,…

Differential Geometry · Mathematics 2024-04-25 José Miguel Balado-Alves

We give a geometric characterization of certain hypersurfaces of cohomogeneity one in the complex projective and hyperbolic planes. We also obtain some partial classifications of austere hypersurfaces and of Levi-flat hypersurfaces with…

Differential Geometry · Mathematics 2016-09-08 Jose Carlos Diaz-Ramos , Miguel Dominguez-Vazquez , Cristina Vidal-Castiñeira

We prove gradient estimates for hypersurfaces in the hyperbolic space $\mathbb{H}^{n+1},$ expanding by negative powers of a certain class of homogeneous curvature functions. We obtain optimal gradient estimates for hypersurfaces evolving by…

Differential Geometry · Mathematics 2015-05-21 Julian Scheuer

We prove that, for a generic set of smooth prescription functions $h$ on a closed ambient manifold, there always exists a nontrivial, smooth, closed hypersurface of prescribed mean curvature $h$. The solution is either an embedded minimal…

Differential Geometry · Mathematics 2018-08-13 Xin Zhou , Jonathan J. Zhu

In this paper, we show the fundamental theorems for rotationally symmetric hypersurfaces, and thus, together with the earlier results in [3] and [4], provide a complete classification of umbilic hypersurfaces in the Heisenberg groups…

Differential Geometry · Mathematics 2025-09-08 Hung-Lin Chiu , Sin-Hua Lai , Hsiao-Fan Liu

We investigate surfaces with constant harmonic-mean curvature one (HMC-1 surfaces) in hyperbolic three-space. We allow them to have certain kinds of singularities, and discuss some global properties. As well as flat surfaces and surfaces…

Differential Geometry · Mathematics 2007-05-23 Masatoshi Kokubu

This paper concerns the evolution of a closed convex hypersurface in ${\mathbb{R}}^{n+1}$, in direction of its inner unit normal vector, where the speed is given by a smooth function depending only on the mean curvature, and satisfies some…

Differential Geometry · Mathematics 2016-10-27 Shunzi Guo

We find complete hypersurfaces of constant curvature in hyperbolic space with a prescribed asymptotic boundary at infinity for a general class of (elliptic) curvature functions which includes the higher order mean curvatures and their…

Differential Geometry · Mathematics 2008-12-15 Joel Spruck , Bo Guan

We study singular del Pezzo surfaces that are quasi-smooth and well-formed weighted hypersurfaces. We give an algorithm how to classify all of them.

Algebraic Geometry · Mathematics 2025-09-03 Erik Paemurru

We give a complete description and classification of locally homogeneous real hypersurfaces in $\mathbb C^3$. Various groups of mathematicians have been studying this problem in the last 25 years, and several significant classes of…

Complex Variables · Mathematics 2020-06-16 A. V. Loboda
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