activity
20032026
most citedQuasi Generalized CR-lightlike submanifolds of indefinite nearly Sasakian manifolds

10 citations · 15 across the 15 of their papers we have counts for

collaborators

19 papers

math.DG2026

Locally conformal almost generalized -cosymplectic manifolds

Fortuné Massamba, Jude Rosnick Bayeni Mitoueni

This paper introduces a new class of geometric structures in almost contact metric geometry, which we call locally conformal almost generalized -cosymplectic manifolds. These ar…

math.DG2025

Timelike conformal fields on closed -manifolds

Emmanuel Gnandi, Fortuné Massamba

This paper investigates timelike conformal vector fields on closed Lorentzian -manifolds and shows that, although these fields form a broader class than Killing fields, their be…

math.DG2025

Remark on quasi Sasakian structures

Emmanuel Gnandi, Fortuné Massamba

In this work, we revisit quasi-Sasakian geometry in dimension three and examine how these structures interact with the foliation generated by the Reeb vector field and its basic co…

math.GM2020

Some properties of curvature tensors and foliations of locally conformal almost Kähler manifolds

Ntokozo Sibonelo Khuzwayo, Fortuné Massamba

We investigate a class of locally conformal almost Kähler structures and prove that, under some conditions, this class is a subclass of almost Kähler structures. We show that a loc…

math.DG2019

A Ricci-type flow on globally null manifolds and its gradient estimates

Mohamed H. A. Hamed, Fortuné Massamba, Samuel Ssekajja

Locally, a screen integrable globally null manifold splits through a Riemannian leaf of its screen distribution and a null curve tangent to its radical distr…

math.GM2017

Warped products with a Tripathi connection

Abdoul Salam Diallo, Fortuné Massamba, Salomon Joseph Mbatakou

The warped product of two Riemannian manifolds and is the product manifold equipped with the warped product metric $g=g_…