Results 11 to 20 of about 4,519,740 (175)
Geometry of weakly symmetric spaces [PDF]
Journal 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
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On some compact almost Kähler locally symmetric space
International Journal of Mathematics and Mathematical Sciences, 1998 In the framework of studying the integrability of almost Kähler manifolds, we prove that if a compact almost Kähler locally symmetric space M is a weakly ,∗-Einstein vnanifold with non-negative ,∗-scalar curvature, then M is a Kähler manifold.
Takashi Oguro
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Geodesic orbit and weakly symmetric spray manifolds [PDF]
Comptes Rendus. MathématiqueIn this paper, we introduce the geodesic orbit and weakly symmetric properties in homogeneous spray geometry. When a homogeneous spray manifold is endowed with a reductive decomposition, we use the spray vector field to describe these properties, and ...
Xu, Xiyun, Xu, Ming
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On coincidence and fixed-point theorems in fuzzy symmetric spaces [PDF]
Journal of Hyperstructures, 2012 In this paper, common fixed point theorems have been studied in fuzzy symmetric space instead of fuzzy metric space.Using weakly compatibility, property ( E.A.), we have generalized the common fixed point theorems for a pair of weakly compatible self ...
T. K. Samanta +4 more
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iD-Sets and Associated Separation Axioms [PDF]
مجلة 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
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Common Fixed Points of Generalized Contractive Hybrid Pairs in Symmetric Spaces
Fixed Point Theory and Applications, 2009 Several fixed point theorems for hybrid pairs of single-valued and multivalued occasionally weakly compatible maps satisfying generalized contractive conditions are established in a symmetric space.
Abdul Rahim Khan, Mujahid Abbas
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Fixed Point Theory and Applications, 2007 We obtain several fixed point theorems for hybrid pairs of single-valued and multivalued occasionally weakly compatible maps defined on a symmetric space satisfying a contractive condition of integral type.
B. E. Rhoades, Mujahid Abbas
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On Weakly $W_3$-Symmetric Manifolds [PDF]
, 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
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The Källén-Lehmann representation in de Sitter spacetime
Journal of High Energy Physics, 2023 We study two-point functions of symmetric traceless local operators in the bulk of de Sitter spacetime. We derive the Källén-Lehmann spectral decomposition for any spin and show that unitarity implies its spectral densities are nonnegative.
Manuel Loparco +3 more
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Energies, 2021 For long distance electric power transport, high-voltage direct current (HVDC) cable systems are a commonly used solution. Space charges accumulate in the HVDC cable insulations due to the applied voltage and the nonlinear electric conductivity of the ...
Christoph Jörgens, Markus Clemens
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