activity
20202026
most citedOn the Generalised Ricci Solitons and Sasakian Manifolds

5 citations · 7 across the 20 of their papers we have counts for

collaborators

20 papers

math.DG2026

Ricci Solitons on the Lie Group and Applications

Mohammed El Amine Mekki, Ahmed Mohammed Cherif

In this paper, we study Ricci solitons on the three-dimensional solvable Lie group equipped with a left-invariant Riemannian metric, viewed as a generaliza…

math.DG2026

On generalized -Parallel Maps

Ahmed Mohammed Cherif

In this paper, we introduce and study the notion of generalized -parallel maps between Riemannian manifolds, where is a vector field on the target manifold. We define the as…

math.DG2026

Dirichlet Energy of the Scalar Curvature

Ahmed Mohammed Cherif

In this article, we derive the first variation formula for the Dirichlet scalar curvature energy functional on Riemannian manifolds. Motivated by this variational framework, we int…

math.DG2026

Harmonic basis vector fields on surfaces

Abdelkader Zagane, Ahmed Mohammed Cherif

In this paper, we study local parameterizations of surfaces in the Euclidean space whose coordinate vector fields are harmonic sections with respect to the induced R…

math.DG2026

On the non-existence of symphonic maps

Ahmed Mohammed Cherif, Kaddour Zegga

In this paper, we study the existence of symphonic maps on compact or complet non-compact Riemannian manifold into Riemannian manifolds admitting a conformal vector field or a non-…

math.DG2026

Construction of normally biharmonic submanifolds

Ahmed Mohammed Cherif

We examine biharmonic submanifolds within warped product structures. For a submanifold and a positive smooth function , we study the inclus…

math.DG2026

On the generalization of biharmonic hypersurfaces and biharmonic curves

Moustafa Tadj, Ahmed Mohammed Cherif, Fethi Latti

In this work, we extend the concepts of -biharmonic maps and -biharmonic hypersurfaces to provide a broader characterization of -harmonic hypersurfaces and -har…

math.DG2026

Bi-symphonic maps between Riemannian manifolds

Ahmed Mohammed Cherif, Kaddour Zegga

This note introduces an extension to the definition of symphonic maps, denoted as , by exploring variations in the bi-energy functional associated with…

math.DG2026

-tensional hypersurfaces in -dimensional space forms

Bouazza Kacimi, Ahmed Mohammed Cherif, Mustafa Özkan

In this paper, we investigate the classification of -tensional hypersurfaces in a -dimensional space form of constant sectional curvature . Our results show t…

math.DG2026

On Ricci Solitons and Harmonic Vector Fields in the Thurston Geometry

Halima Boukhari, Hadjer Okbani, Ahmed Mohammed Cherif

In this paper, we consider a left-invariant Riemannian metric on the Lie group . We classify Ricci solitons on and show that all such solitons are expanding and…

math.DG2026

On the generalized of -biharmonic and bi--harmonic maps

Fethi Latti, Ahmed Mohammed Cherif

In this note, we extend the definition of -biharmonic and bi--harmonic maps between two Riemannian manifolds and explore some of their properties.

math.DG2025

-tensional maps and -tensional maps

Bouazza Kacimi, Ahmed Mohammed Cherif, Mustafa Özkan

Let be a smooth map between Riemannian manifolds. The tension field of can be regarded as a map from into the Riemannian vector bundle $…

math.DG2023

On torse-forming vector fields and biharmonic hypersurfaces in Riemannian manifolds

Ahmed Mohammed Cherif

In this paper, we give some properties of biharmonic hypersurface in Riemannian manifold has a torse-forming vector field.

math.DG2022★ 1 cited

Classification of Codazzi and note on minimal hypersurfaces in

Noura Djellali, Abdelbasset Hasni, Ahmed Mohammed Cherif +1

In this paper, we give a classification of Codazzi hypersurfaces in a Lie group . We also give a characterization of a class of minimal hypersurfaces in $(N…

math.DG2022★ 5 cited

On the Generalised Ricci Solitons and Sasakian Manifolds

Ahmed Mohammed Cherif, Kaddour Zegga, Gherici Beldjilali

In this note, we find a necessary condition on odd-dimensional Riemannian manifolds under which both of Sasakian structure and the generalised Ricci soliton equation are satisfied,…

math.DG2022

On the generalized of p-harmonic maps

Bouchra Merdji, Ahmed Mohammed Cherif

In this paper, we extend the definition of p-harmonic and p-biharmonic maps between Riemannian manifolds. We present some new properties for the generalized stable p-harmonic maps.

math.DG2021★ 1 cited

p-Biharmonic hypersurfaces in Einstein space and conformally flat space

Khadidja Mouffoki, Ahmed Mohammed Cherif

In this paper, we present some new properties for p-biharmonic hypersurfaces in Riemannian manifold. We also characterize the p-biharmonic submanifolds in an Einstein space. We con…

math.DG2021

On the p-biharmonic submanifolds and stress p-bienergy tensors

Khadidja Mouffoki, Ahmed Mohammed Cherif

In this paper, we consider p-biharmonic submanifolds of aspace form. We give the necessary and sufficient conditions for a submanifold to be p-biharmonic in a space form. We presen…

math.DG2021

Second Variation of F-Einstein-Hilbert Functional

Ahmed Mohammed Cherif

This article describes a formula for second variation of generalized Einstein-Hilbert functional on Riemannian manifolds. This work extends the definition of stable Einstein manifo…

math.DG2020

On the nonexistence of harmonic and bi-harmonic maps

Ahmed Mohammed Cherif

In this paper, we study the existence of harmonic and bi-harmonic maps into Riemannian manifolds admitting a conformal vector field, or a nontrivial Ricci solitons.