Nonsymmetric weakly complete G-spaces
Nontaut foliations and isoperimetric constants
We study nontaut codimension one foliations on closed Riemannian manifolds. We find an estimate of some constant derived from the mean curvature function of the leaves of a foliation by some isoperimetric constant of the manifold. Moreover, for foliated 2-tori and the 3-dimensional unit sphere, we find the infimum of the former constants for all nontaut codimension one foliations.
Non-trapping sets and Huygens principle
Non-Trapping sets and Huygens Principle
We consider the evolution of a set according to the Huygens principle: i.e. the domain at time t>0, Λt, is the set of the points whose distance from Λ is lower than t. We give some general results for this evolution, with particular care given to the behavior of the perimeter of the evoluted set as a function of time. We define a class of sets (non-trapping sets) for which the perimeter is a continuous function of t, and we give an algorithm to approximate the evolution. Finally we restrict...
Nontrivial examples of coupled equations for Kähler metrics and Yang-Mills connections
We provide nontrivial examples of solutions to the system of coupled equations introduced by M. García-Fernández for the uniformization problem of a triple (M; L; E), where E is a holomorphic vector bundle over a polarized complex manifold (M, L), generalizing the notions of both constant scalar curvature Kähler metric and Hermitian-Einstein metric.
Nonuniqueness for the heat flow of harmonic maps
Nonzero degree tangential maps between dual symmetric spaces.
Normal almost contact metric manifolds of dimension three
Normal and osculating planes of -regular curves.
Normal anti-invariant submanifolds of paraquaternionic Kähler manifolds.
Normal Characteristic Forms: Conformal Invariance and Duality.
Normal form of the NK-curvature operators
Normal forms of vector fields on Poisson manifolds
We study formal and analytic normal forms of radial and Hamiltonian vector fields on Poisson manifolds near a singular point.
Normal semi-invariant submanifolds of a Sasakian manifold
Normalization of Differential Equations Defining a CR Structure.
Normally flat semiparallel submanifolds in space forms as immersed semisymmetric Riemannian manifolds
By means of the bundle of orthonormal frames adapted to the submanifold as in the title an explicit exposition is given for these submanifolds. Two theorems give a full description of the semisymmetric Riemannian manifolds which can be immersed as such submanifolds. A conjecture is verified for this case that among manifolds of conullity two only the planar type (in the sense of Kowalski) is possible.
Nota sobre planos isoclinos
Notable curves in geometrized framework.
Note, betreffend die eindeutige Transformation ebener Curven
Note on an inequality