Results 11 to 20 of about 1,695,763 (245)

Geometry of weakly symmetric spaces [PDF]

open access: yesJournal of the Mathematical Society of Japan, 1996
Weakly symmetric spaces have been introduced by \textit{A. Selberg} in [J. Indian Math. Soc., n. Ser. 20, 47-87 (1956; Zbl 0072.08201)]. An alternative definition says that a Riemannian manifold \(M\) is weakly symmetric if, for any two points \(p,q\) in \(M\), there exists an isometry of \(M\) interchanging \(p\) with \(q\).
BERNDT, Jürgen, VANHECKE, Lieven
openaire   +3 more sources

Weakly symmetric spaces and bounded symmetric domains

open access: yesTransformation Groups, 1997
Let \((M= G/K,g)\) be a homogeneous Riemannian manifold and \(I(M,g)\) its isometry group. Following A. Selberg, \((M,g)\) is said to be weakly symmetric if there exists an element \(\mu\in I(M,g)\) satisfying \(\mu G\mu^{-1} =G\) and \(\mu^2 \in G\) such that for any given \(x,y \in M\), there exists a \(\gamma\in G\) such that \(\gamma x= \mu y\) and
Hiêú Nguyen
openaire   +2 more sources

JH-Operators and Occasionally Weakly g-Biased Pairs in Fuzzy Symmetric Spaces

open access: yesJournal of Nonlinear Analysis and Application, 2013
We introduce the notions of $\mathcal{JH}$-operators and occasionally weakly $g$-biased mappings in fuzzy symmetric spaces to prove common fixed point theorems for self-mappings satisfying a generalized mixed contractive condition. We also prove analogous results for two pairs of $\mathcal{JH}$-operators by assuming symmetry only on the set of points ...
LO CICERO, Maria Lucia   +3 more
openaire   +3 more sources

Block-symmetric and weakly symmetric polynomials on Banach spaces of absolutely summable in a power $p\in [1,+\infty)$ sequences

open access: yesМатематичні Студії
The work is devoted to the study of block-symmetric and weakly symmetric continuous polynomials on the Banach space $\ell_p^{ (\mathbb{K}) }$ of all sequences $x = (x_1, x_2, \ldots)$ with $x_j \in \mathbb{K}$ for $j\in\mathbb{N}$ such that the series $\
A. I. Bandura   +2 more
doaj   +2 more sources

On totally umbilical hypersurfaces of weakly projective symmetric spaces

open access: yes, 2013
Summary: The object of the present paper is to study the totally umbilical hypersurfaces of weakly projective symmetric spaces and it is shown that the totally umbilical hypersurfaces of a weakly projective symmetric space are also weakly projective symmetric spaces.
Hui, Shyamal Kumar, Zengin, Füsun Özen
core   +3 more sources

Weakly complex homogeneous spaces [PDF]

open access: yes, 2012
16 pagesWe complete our recent classification of compact inner symmetric spaces with weakly complex tangent bundle by filling up a case which was left open, and extend this classification to the larger category of compact homogeneous spaces with positive
Moroianu, Andrei, Semmelmann, Uwe
core   +5 more sources

Symplectic duality of Symmetric Spaces [PDF]

open access: yes, 2008
We show that between symmetric spaces of different types there exists a bi-symplectic map.
Loi, Andrea   +3 more
core   +1 more source

On Weakly $W_3$-Symmetric Manifolds [PDF]

open access: yes, 2011
summary:The object of the present paper is to study weakly $W_3$-symmetric manifolds and its decomposability with the existence of such notions. Among others it is shown that in a decomposable weakly $W_3$-symmetric manifold both the decompositions are ...
Hui, Shyamal Kumar
core   +1 more source

Extended weakly symmetric manifolds [PDF]

open access: yes, 2022
In this work, we have introduced and studied some basic geometric properties of extended weakly symmetric spaces. After classification of this structure we have also established the existence of such a space by presenting a non-trivial ...
Pain, Malay   +4 more
core  

On Almost Generalized Weakly Symmetric Kenmotsu Manifolds [PDF]

open access: yes, 2016
summary:This paper aims to introduce the notions of an almost generalized weakly symmetric Kenmotsu manifolds and an almost generalized weakly Ricci-symmetric Kenmotsu manifolds.
Mikeš, Josef   +3 more
core   +1 more source

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