Results 31 to 40 of about 613,404 (287)

On weakly $\phi $-symmetric Kenmotsu Manifolds

open access: yes, 2012
summary:The object of the present paper is to study weakly $\phi $-symmetric and weakly $\phi $-Ricci symmetric Kenmotsu manifolds. It is shown that weakly $\phi $-symmetric and weakly $\phi $-Ricci symmetric Kenmotsu manifolds are $\eta ...
Hui, Shyamal Kumar
core   +1 more source

Hyper-Generalized Weakly Symmetric Para-Sasakian Manifolds and Their Geometric Properties

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы
This paper examines para-Sasakian manifolds that satisfy a hyper-generalized weakly symmetric curvature condition. The conditions under which such a manifold with a hyper-generalized weakly symmetric curvature condition satisfies the η-Einstein manifold
B. Thangjam, M.S. Devi
doaj   +1 more source

iD-Sets and Associated Separation Axioms [PDF]

open access: yesمجلة التربية والعلم, 2019
In this paper, we introduce iD-sets which are depends on i-open sets [12]. Where we discussed the relationship between this sets and other types of sets, In addition, we discussed the relationship between the separation axioms for this type of sets with ...
Marwan Jardo
doaj   +1 more source

Weakly Symmetric Functions and Weakly Symmetrically Continuous Functions

open access: yesReal Analysis Exchange, 2015
We prove that there exists a nowhere weakly symmetric function $f: \mathbb{R} \rightarrow \mathbb{R}$ that is everywhere weakly symmetrically continuous and everywhere weakly continuous. Existence of a nowhere weakly symmetrically continuous function $f: \mathbb{R} \rightarrow \mathbb{R}$ that is everywhere weakly symmetric remains open.
openaire   +2 more sources

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Weakly Associative and Symmetric Leibniz Algebras

open access: yesJournal of Lie Theory, 2022
We study a special class of weakly associative algebras: the symmetric Leibniz algebras. We describe the structure of the commutative and skew symmetric algebras associated with the polarization-depolarization principle. We also give a structure theorem for the symmetric Leibniz algebras and we study formal deformations in the context of deformation ...
openaire   +3 more sources

On Weakly Symmetric and Weakly Conformally Symmetric Spaces Admitting Veblen Identities [PDF]

open access: yes, 2011
In the present paper some properties involving curvature tensor,conformal curvature tensor, Ricci tensor and scalar curvature, on weakly symmetric, weakly conformally symmetric and pseudo symmetric spaces are ...
Hari Baskar, R.   +4 more
core   +1 more source

Automorphism groups of some families of bipartite graphs

open access: yesElectronic Journal of Graph Theory and Applications, 2021
This paper discusses the automorphism group of a  class of  weakly semiregular bipartite graphs and its subclass called WSBEND graphs.  It also tries to analyse the  automorphism group of the SM sum graphs and SM balancing graphs.
K.G. Sreekumar, K. Manilal
doaj   +1 more source

A New Class of Weakly Symmetric Spaces

open access: yesRocky Mountain Journal of Mathematics, 1999
A Riemannian manifold \(M\) is called weakly symmetric if any two points \(x,y \in M\) can be interchanged by an isometry. The authors prove that a simply connected Riemannian manifold \(M\) is weakly symmetric if it admits a complete unit Killing vector field \(X\) such that the reflections with respect to the flow lines of \(X\) can be extended to ...
González-Dávila, J.C., Vanhecke, L.
openaire   +2 more sources

Soft motions encoded by the fold and mediated by conserved hinge sites drive V‐ATPase allosteric machinery and autoinhibition

open access: yesFEBS Letters, EarlyView.
Vacuolar H+‐ATPase (V‐ATPase) is a multisubunit rotary proton pump that acidifies intracellular compartments. Using elastic network models, we identified conserved hinge residues that govern its large‐scale functional motions. We show that intrinsically encoded ‘soft modes’ drive critical functional transitions, including rotary catalysis and ...
Diksha Parwana   +3 more
wiley   +1 more source

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