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Displaying 261 – 280 of 326

Riemannian Polyhedra and Liouville-Type Theorems for Harmonic Maps

Zahra Sinaei (2014)

Analysis and Geometry in Metric Spaces

This paper is a study of harmonic maps fromRiemannian polyhedra to locally non-positively curved geodesic spaces in the sense of Alexandrov. We prove Liouville-type theorems for subharmonic functions and harmonic maps under two different assumptions on the source space. First we prove the analogue of the Schoen-Yau Theorem on a complete pseudomanifolds with non-negative Ricci curvature. Then we study 2-parabolic admissible Riemannian polyhedra and prove some vanishing results on them.

Riemannian regular $σ$ -manifolds

A. A. Ermolitski (1994)

Czechoslovak Mathematical Journal

Riemannian semisymmetric almost Kenmotsu manifolds and nullity distributions

Yaning Wang, Ximin Liu (2014)

Annales Polonici Mathematici

We consider an almost Kenmotsu manifold $M^{2 n + 1}$ with the characteristic vector field ξ belonging to the (k,μ)’-nullity distribution and h’ ≠ 0 and we prove that $M^{2 n + 1}$ is locally isometric to the Riemannian product of an (n+1)-dimensional manifold of constant sectional curvature -4 and a flat n-dimensional manifold, provided that $M^{2 n + 1}$ is ξ-Riemannian-semisymmetric. Moreover, if $M^{2 n + 1}$ is a ξ-Riemannian-semisymmetric almost Kenmotsu manifold such that ξ belongs to the (k,μ)-nullity distribution, we prove that $M^{2 n + 1}$ is...

Riemannian Submersions of Compact Simple Lie Groups with Connected Totally Geodesic Fibres.

Akhil Ranjan (1986)

Mathematische Zeitschrift

Riemannian symmetries in flag manifolds

Paola Piu, Elisabeth Remm (2012)

Archivum Mathematicum

Flag manifolds are in general not symmetric spaces. But they are provided with a structure of $ℤ_{2}^{k}$ -symmetric space. We describe the Riemannian metrics adapted to this structure and some properties of reducibility. The conditions for a metric adapted to the $ℤ_{2}^{2}$ -symmetric structure to be naturally reductive are detailed for the flag manifold $S O (5) / S O (2) \times S O (2) \times S O (1)$ .

Riemannian Tori Without Conjugate Points are Flat.

D. Burago, K. Teneblat (1994)

Geometric and functional analysis

Riemann-Lagrange geometrical background for multi-time physical fields.

Neagu, Mircea (2001)

Balkan Journal of Geometry and its Applications (BJGA)

Riemann-Roch theorem after D. Toledo and Y.-L. Tong

Schechtman, V. V. (1989)

Proceedings of the Winter School "Geometry and Physics"

Riemann-Roch theorem and Lie algebra cohomology

Feigin, B. L., Tsygan, B. L. (1989)

Proceedings of the Winter School "Geometry and Physics"

Riemannsche Arealstrukturen und muliquadratische Formen.

Siegfried Steiner (1985)

Manuscripta mathematica

Riemannsche Flächen mit Eigenwerten in (0, ...).

Peter Buser (1977)

Commentarii mathematici Helvetici

Riemannsche Flächen mit grosser Kragenweite.

Peter Buser (1978)

Commentarii mathematici Helvetici

Riemannsche Mannigfaltigkeiten konstanter positiver Krümmung in euklidischen Räumen der Kodimension 2.

Wolfgang HENKE (1971)

Mathematische Annalen

Riesz means on Lie groups and riemannian manifolds of nonnegative curvature

Georgios Alexopoulos, Noël Lohoué (1994)

Bulletin de la Société Mathématique de France

Riesz transforms for symmetric diffusion operators on complete Riemannian manifolds.

Xiang Dong Li (2006)

Revista Matemática Iberoamericana

Rigid paths of generic 2-distributions with degenerate points on 3-manifolds

Jiro Adachi (2002)

Colloquium Mathematicae

We study rigid paths of generic 2-distributions with degenerate points on 3-manifolds. A complete description of such paths is obtained. For the proof, we construct separating surfaces of paths admissible for distributions.

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