Results 21 to 30 of about 4,611 (302)

Analytically approximation solution to $$R^{2}$$ R 2 gravity

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
In this paper, we obtain analytical approximate black hole solutions in the framework of f(R) gravity and the absence of a cosmological constant. In this area, we apply the equations of motion of the theory to a spherically symmetric spacetime with one ...
S. N. Sajadi, Ali Hajilou, S. H. Hendi
doaj   +1 more source

Anisotropic star by gravitational decoupling: A vanishing complexity approach

open access: yesResults in Physics, 2023
A new static spherically symmetric interior solution has been derived using Gravitational Decoupling via Complete Geometric Deformation, satisfying the vanishing complexity which explores the fundamental physical acceptability of the stellar model.
Smitha T.T.   +3 more
doaj   +1 more source

Spherically symmetric gravity as a completely integrable system [PDF]

open access: yesNuclear Physics B, 1994
20.p., Latex, PITHA 93 ...
Kastrup, H. A., Thiemann, T.
openaire   +2 more sources

A structural analysis of self-gravitating anisotropic stars via equation of state in modified teleparallel gravity

open access: yesResults in Physics, 2023
This work aims to explore spherically symmetric anisotropic solutions describing compact stellar objects in the extended teleparallel theory of gravity with matter coupling. For this purpose, we use the Adler Finch Skea geometry for both the off-diagonal
Munsif Jan   +4 more
doaj   +1 more source

Completely reducible subcomplexes of spherical buildings [PDF]

open access: yesArchiv der Mathematik, 2011
We generalize a result of Serre's to show that if every vertex of some fixed type of a convex subcomplex of an irreducible spherical building has an opposite, then the subcomplex is completely reducible.
Parker, Chris, Tent, Katrin
openaire   +3 more sources

Complemented subspaces of p-adic second dual Banach spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1995
Let K be a non-archimedean non-trivially valued complete field. In this paper we study Banach spaces over K. Some of main results are as follows: (1) The Banach space BC((l∞)1) has an orthocomplemented subspace linearly homeomorphic to c0. (2) The Banach
Takemitsu Kiyosawa
doaj   +1 more source

Strict topoligies in non-Archimedean function spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1984
Let F be a non-trivial complete non-Archimedean valued field. Some locally F-convex topologies, on the space Cb(X,E) of all bounded continuous functions from a zero-dimensional topological space X to a non-Archimedean locally F-convex space E, are ...
A. K. Katsaras
doaj   +1 more source

Spherically complete models of Hensel minimal valued fields

open access: yesMathematical Logic Quarterly, 2023
AbstractWe prove that Hensel minimal expansions of finitely ramified Henselian valued fields admit spherically complete immediate elementary extensions. More precisely, the version of Hensel minimality we use is 0‐hmix‐minimality (which, in equi‐characteristic 0, amounts to 0‐h‐minimality).
David B. Bradley‐Williams   +1 more
openaire   +2 more sources

Metric fluctuations in higher-dimensional black holes

open access: yesJournal of High Energy Physics, 2023
We investigated the impact of metric fluctuations on the higher-dimensional black hole geometry. We generalized the four-dimensional model to higher dimensions to treat quantum vacuum fluctuations by the classical approach.
Hyewon Han, Bogeun Gwak
doaj   +1 more source

On the operator equations ABA = A2 and BAB = B2 on non-Archimedean Banach spaces

open access: yesTopological Algebra and its Applications, 2023
Let XX and YY be non-Archimedean Banach spaces over K{\mathbb{K}}, A∈B(X,Y)A\in B\left(X,Y) and B∈B(Y,X)B\in B\left(Y,X) such that ABA=A2ABA={A}^{2} and BAB=B2.BAB={B}^{2}.
Ettayb Jawad
doaj   +1 more source

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