Results 31 to 40 of about 20,711 (219)
Pythagorean Isoparametric Hypersurfaces in Riemannian and Lorentzian Space Forms
Axioms, 2022 We introduce the notion of a Pythagorean hypersurface immersed into an n+1-dimensional pseudo-Riemannian space form of constant sectional curvature c∈−1,0,1.
Muhittin Evren Aydın +2 more
doaj +1 more source
Differential Geometry of Submanifolds in Complex Space Forms Involving δ-Invariants
Mathematics, 2022 One of the fundamental problems in the theory of submanifolds is to establish optimal relationships between intrinsic and extrinsic invariants for submanifolds.
Bang-Yen Chen +2 more
doaj +1 more source
Isotropic submanifolds of pseudo-Riemannian spaces
Journal of Geometry and Physics, 2012 The family of all the submanifolds of a given Riemannian or pseudo-Riemannian manifold is large enough to classify them into some interesting subfamilies such as minimal (maximal), totally geodesic, Einstein, etc. Most of these have been extensively studied by many authors, but as far as we know, no paper has hitherto been published on the class of ...
Cabrerizo Jaraíz, José Luis +2 more
openaire +4 more sources
Almost Complex Surfaces in the Nearly Kähler SL(2,ℝ) × SL(2,ℝ)
Mathematics, 2020 The space S L ( 2 , R ) × S L ( 2 , R ) admits a natural homogeneous pseudo-Riemannian nearly Kähler structure. We investigate almost complex surfaces in this space.
Elsa Ghandour, Luc Vrancken
doaj +1 more source
Decoding of Turning Intention during Walking Based on EEG Biomarkers
Biosensors, 2022 In the EEG literature, there is a lack of asynchronous intention models that realistically propose interfaces for applications that must operate in real time.
Vicente Quiles +4 more
doaj +1 more source
Biharmonic Pseudo-Riemannian Submersions from 3-Manifolds
, 2018 We classify the pseudo-Riemannian biharmonic submersion from a 3-dimensional space form onto a ...
Murathan, Cengizhan +1 more
core +2 more sources
Null Curve Evolution in Four-Dimensional Pseudo-Euclidean Spaces
Advances in Mathematical Physics, 2016 We define a Lie bracket on a certain set of local vector fields along a null curve in a 4-dimensional semi-Riemannian space form. This Lie bracket will be employed to study integrability properties of evolution equations for null curves in a pseudo ...
José del Amor +2 more
doaj +1 more source
Kuga–Satake Construction on Families of K3 Surfaces of Picard Rank 14
Mathematische Nachrichten, EarlyView.ABSTRACT The isometry between the type IV6 and the type II4 hermitian symmetric domains suggests a possible relation between suitable moduli spaces of K3 surfaces of Picard rank 14 and of polarized abelian 8‐folds with totally definite quaternion multiplication. We show how this isometry induces a geometrically meaningful map between such moduli spaces
Flora Poon
wiley +1 more source
Non‐Rigid 3D Shape Correspondences: From Foundations to Open Challenges and Opportunities
Computer Graphics Forum, EarlyView.Abstract Estimating correspondences between deformed shape instances is a long‐standing problem in computer graphics; numerous applications, from texture transfer to statistical modelling, rely on recovering an accurate correspondence map. Many methods have thus been proposed to tackle this challenging problem from varying perspectives, depending on ...
A. Zhuravlev +14 more
wiley +1 more source