23 citations · 135 across the 39 of their papers we have counts for
12 papers · 1 filter
Flatness produced by some geometric PDEs
Iulia Hirica, Constantin Udriste, Gabriel Pripoae +1
This paper has several goals. The first idea is to study the geometric PDEs of connection-flatness, curvature-flatness, Ricci-flatness, scalar curvature-flatness in a modern and ri…
Almost Coquaternion Structure
Constantin Udriste
Our aim is to define and study a structure for some -dimensional manifolds which is named almost coquaternion structure. This structure is composed of three almost cocomple…
Multitime maximum principle approach of minimal submanifolds and harmonic maps
Constantin Udriste
Some optimization problems coming from the Differential Geometry, as for example, the minimal submanifolds problem and the harmonic maps problem are solved here via interior soluti…
Harmonicity and submanifold maps
Constantin Udriste, Vasile Arsinte, Andreea Bejenaru
The aim of this paper is fourfold. Firstly, we introduce and study the f-ultra-harmonic maps. Secondly, we recall the geometric dynamics generated by a first order normal PDE syste…
Geometric Dynamics of Plasma in Jet Spaces with Berwald-Moor Metric
Mircea Neagu, Constantin Udriste
In this paper we construct the differential equations of the stream lines that characterize plasma regarded as a non-isotropic medium geometrized by a jet rheonomic time-invariant…
H-Convex Riemannian Submanifolds
Constantin Udriste, Teodor Oprea
Having in mind the well known model of Euclidean convex hypersurfaces [4], [5], and the ideas in [1] many authors defined and investigate convex hypersurfaces of a Riemannian manif…