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Characterizing Round Spheres Using Half-Geodesics
, 2019 A half-geodesic is a closed geodesic realizing the distance between any pair of its points. All geodesics in a round sphere are half-geodesics. Conversely, this note establishes that Riemannian spheres with all geodesics closed and sufficiently many half-
Adelstein, Ian M, Schmidt, Benjamin
core
Critical Riemannian metrics on Sasakian manifolds [PDF]
Kodai Mathematical Journal, 1983 Yamaguchi, Seiichi, Chūman, Gorō
openaire +2 more sources
Topological restrictions for circle actions and harmonic morphisms
, 2000 Let $M^m$ be a compact oriented smooth manifold which admits a smooth circle action with isolated fixed points which are isolated as singularities as well. Then all the Pontryagin numbers of $M^m$ are zero and its Euler number is nonnegative and even. In
John +3 more
core +6 more sources
Critical Riemannian metrics on product manifolds [PDF]
Kodai Mathematical Journal, 1975 openaire +3 more sources
Predicting cardiopulmonary exercise testing outcomes in congenital heart disease through multimodal data integration and geometric learning. [PDF]
Sci RepAlkan M, Veldtman G, Deligianni F.
europepmc +2 more sources
Riemannian submersions and critical Riemannian metrics
Journal of the Mathematical Society of Japan, 1977 openaire +2 more sources
Curvature and critical Riemannian metric
Journal of the Mathematical Society of Japan, 1974 openaire +2 more sources
Phase shift optimization in reconfigurable intelligent surface-assisted UAV in hierarchical aerial computing networks. [PDF]
Sci RepDiaa B +3 more
europepmc +1 more source
Objective assessment of familiarity in music using imagery and EEG-based machine learning. [PDF]
Sci RepDarçot B +6 more
europepmc +1 more source