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Related papers: Simons' type formula for slant submanifolds of com…

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We classify Lagrangian submanifolds of complex space forms, whose second fundamental form can be written in a certain way, depending on a real parameter. For some special values of this parameter, the resulting submanifolds are ideal in the…

Differential Geometry · Mathematics 2013-09-18 Bang-Yen Chen , Joeri Van der Veken , Luc Vrancken

One of effective ways to solve the equivalence problem and describe moduli spaces for real submanifolds in complex space is the normal form approach. In this survey, we outline some normal form constructions in CR-geometry and formulate a…

Complex Variables · Mathematics 2016-06-28 Martin Kolar , Ilya Kossovskiy , Dmitri Zaitsev

On a complex manifold $(M,J)$, we interpret complex symplectic and pseudo-K\"ahler structures as symplectic forms with respect to which $J$ is, respectively, symmetric and skew-symmetric. We classify complex symplectic structures on…

Differential Geometry · Mathematics 2025-03-26 Giovanni Bazzoni , Alejandro Gil-García , Adela Latorre

The aim of our paper is to focus on some properties of slant and semi-slant submanifolds of metallic Riemannian manifolds. We give some characterizations for submanifolds to be slant or semi-slant submanifolds in metallic or Golden…

Differential Geometry · Mathematics 2025-08-04 Cristina E. Hretcanu , Adara M. Blaga

We introduce the notion of a manifold admitting a simple compact Cartan 3-form $\om^3$. We study algebraic types of such manifolds specializing on those having skew-symmetric torsion, or those associated with a closed or coclosed 3-form…

Differential Geometry · Mathematics 2013-04-04 Hong Van Le

In this note we provide a direct proof of the complete classification of conformally flat isoparametric submanifolds of Euclidean space.

Differential Geometry · Mathematics 2019-05-03 Christos-Raent Onti

We compute the Laplacian of the squared norm of the second fundamental form of a surface in Sol_3 and then use this Simons type formula to obtain some gap results for compact constant mean curvature surfaces of this space.

Differential Geometry · Mathematics 2022-05-03 Dorel Fetcu

A few formulas and theorems for statistical structures are proved. They deal with various curvatures as well as with metric properties of the cubic form or its covariant derivative. Some of them generalize formulas and theorems known in the…

Differential Geometry · Mathematics 2021-05-12 Barbara Opozda

We prove that under certain conditions on the mean curvature and on the Kaehler angles, a compact submanifold M of real dimension 2n, immersed into a Kaehler-Einstein manifold N of complex dimension 2n, must be either a complex or a…

Differential Geometry · Mathematics 2007-05-23 Isabel M. C. Salavessa

We consider a complex Plateau problem for strongly pseudoconvex contours in non K\"ahler manifolds. A positive solution in the case of manifolds carrying a pluriclosed Hermitian metric forms is given. For the general case we propose a…

Complex Variables · Mathematics 2007-05-23 Sergei Ivashkovich

A Riemannian metric on a manifold M induces a family of Riemannian metrics on the loop space LM depending on a Sobolev space parameter s. We compute the connection forms of these metrics and the higher symbols of their curvature forms,…

Differential Geometry · Mathematics 2014-05-19 Yoshiaki Maeda , Steven Rosenberg , Fabián Torres-Ardila

We give necessary and sufficient conditions for a Lagrangian submanifold of a K\"ahler manifold to be biharmonic. Furthermore, we classify biharmonic PNMC Lagrangian submanifolds in the complex space forms.

Differential Geometry · Mathematics 2012-04-10 Shun Maeta , Hajime Urakawa

In this paper we present a Hamiltonian formulation of multisymplectic type of an invariant variational problem on smooth submanifold of dimension $p$ in a smooth manifold of dimension $n$ with $p<n$.

Dynamical Systems · Mathematics 2012-09-07 Imsatfia Moheddine

We present a survey of some results and questions related to the notion of scalar curvature in the setting of symplectic supermanifolds.

Differential Geometry · Mathematics 2018-05-11 Rosalía Hernández-Amador , Juan Monterde , José A Vallejo

We discuss our recent results on the existence and classification problem of complex and Kaehler structures on compact solvmanifolds. In particular, we determine in this paper all the complex surfaces which are diffeomorphic to compact…

Complex Variables · Mathematics 2008-04-30 Keizo Hasegawa

We give an intrinsic characterization of multisymplectic manifolds that have the linear type of density-valued symplectic forms in each tangent space, prove Darboux-type theorems for these forms, and investigate their symmetries.

Symplectic Geometry · Mathematics 2026-01-13 Laura Leski , Leonid Ryvkin

We present Chen-Ricci inequality and improved Chen-Ricci inequality for curvature like tensors. Applying our improved Chen-Ricci inequality we study Lagrangian and Kaehlerian slant submanifolds of complex space forms and C-totally real…

Differential Geometry · Mathematics 2011-04-19 Mukut Mani Tripathi

In this paper we establish some inequalities concerning the $k$-Ricci curvature of a slant submanifold in a quaternionic space form. We also obtain obstructions to the existence of quaternionic slant immersions in quaternionic space forms…

Differential Geometry · Mathematics 2013-02-13 Gabriel Eduard Vilcu

In this paper we prove a symmetry result on submanifolds of codimension one in a n + 1-dimensional space form, related to the geodesic distance function and to the normal curvature of some fixed vector field. As applications we will prove…

Differential Geometry · Mathematics 2010-11-09 Ali Maalaoui , Vittorio Martino

In this paper we give a spinorial representation of submanifolds of any dimension and codimension into Riemannian space forms in terms of the existence of so called generalized Killing spinors. We then discuss several applications, among…

Differential Geometry · Mathematics 2018-03-16 P. Bayard , M. -A. Lawn , J. Roth