نتایج جستجو برای: recurrent manifold

تعداد نتایج: 158325  

2012
KRISHAN L. DUGGAL K. Yano

The object of this paper is to study invariant submanifolds M of Kenmotsu manifolds M̃ admitting a quarter symmetric metric connection and to show that M admits quarter symmetric metric connection. Further it is proved that the second fundamental forms σ and σ with respect to LeviCivita connection and quarter symmetric metric connection coincide. Also it is shown that if the second fundamental f...

Journal: :bulletin of the iranian mathematical society 2011
r. mirzaie

2001
Alexander Grigor'yan Mark Kelbert

The purpose of this paper is to relate the recurrence and transience properties of a branching di usion process on a Riemannian manifold M to some properties of a linear elliptic operator on M (including spectral properties). There is a trade-o between the tendency of the Brownian motion to escape (if it is transient) and the birth process of the new particles. If the latter has a high enough i...

2010
Absos Ali Shaikh Ananta Patra

The object of the present paper is to introduce a non-flat Riemannian manifold called hyper-generalized recurrent manifolds and study its various geometric properties along with the existence of a proper example.

ژورنال: تحقیقات موتور 2010
محمدابراهیم, ابوالفضل, کاکایی, امیر حسین,

The objective of this work was to develop a new design of an intake manifold through a 1D simulation. It is quite familiar that a duly designed intake manifold is essential for the optimal performance of an internal combustion engine. Air flow inside the intake manifold is one of the important factors, which governs the engine performance and emissions. Hence the flow phenomenon inside the i...

Journal: :International electronic journal of geometry 2022

The object of the present paper is to study Z-symmetric manifold with projective curvature tensor. At first, we case Z-tensor and Ricci tensor being Codazzi type. Next, consider recurrent We also divergence-free Z-tensor. Finally, construct an example

The present article serves the purpose of pursuing Geometrization of heat flow on volumetrically isothermal manifold by means of RF approach. In this article, we have analyzed the evolution of heat equation in a 3-dimensional smooth isothermal manifold bearing characteristics of Riemannian manifold and fundamental properties of thermodynamic systems. By making use of the notions of various curva...

M. bakhtiari, R. Mirzaei

A manifold with a smooth action of a Lie group G is called G-manifold. In this paper we consider a complete Riemannian manifold M with the action of a closed and connected Lie subgroup G of the isometries. The dimension of the orbit space is called the cohomogeneity of the action. Manifolds having actions of cohomogeneity zero are called homogeneous. A classic theorem about Riemannian manifolds...

In this paper, we obtain a necessary and sufficient condition for a conformal mapping between two Weyl manifolds to preserve Einstein tensor. Then we prove that some basic curvature tensors of $W_n$ are preserved by such a conformal mapping if and only if the covector field of the mapping is locally a gradient. Also, we obtained the relation between the scalar curvatures of the Weyl manifolds r...

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