Axion Black Hole Solution in Non‐Metricity Gravity
Fortschritte der Physik, Volume 74, Issue 2, February 2026.Abstract A static, spherically symmetric black hole solution in symmetric teleparallel (non‐metricity) gravity sourced by an axion field is constructed. Starting from the modified field equations, exact configurations are obtained characterized by the mass M$M$ and an axion–geometry coupling β$\beta$, with temporal metric function A(r)=1−2Mr+βr$A(r)=1-\
A. Eid, G.G.L. Nashed
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Rigidity of anti‐de Sitter (2+1)‐spacetimes with convex boundary near the Fuchsian locus
Journal of the London Mathematical Society, Volume 113, Issue 2, February 2026.Abstract We prove that globally hyperbolic compact anti‐de Sitter (2+1)‐spacetimes with a strictly convex spacelike boundary that is either smooth or polyhedral and whose holonomy is close to Fuchsian are determined by the induced metric on the boundary.
Roman Prosanov, Jean‐Marc Schlenker
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The spacelike q-curve rq and timelike Hasimoto surface .
The spacelike q-curve rq and timelike Hasimoto surface .
F. M. El-Adawy (17720521) +3 more
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Minkowski Uzay-Zamanda Timelike W-Eğrilerin Küresel Göstergelerinin Karakterizasyonları
, 2020 We know that ?? ?curve is a curve which has constant Frenet curvatures. In this study, firstly, wehave investigated the principal normal and binormal spherical images of a timelike ??
Çimdiker, Muradiye +2 more
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Geometric Characterizations of Canal Surfaces in Minkowski 3-Space
Mathematics, 2019 Canal surfaces are defined and divided into nine types in Minkowski 3-space E 1 3 , which are obtained as the envelope of a family of pseudospheres S 1 2 , pseudohyperbolic spheres H 0 2 , or lightlike cones Q 2 , whose ...
Jinhua Qian +3 more
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Riemann Solitons on Relativistic Bulk‐Viscous Fluid String Spacetime
International Journal of Mathematics and Mathematical Sciences, Volume 2026, Issue 1, 2026.In this article, we undertake a comprehensive study of almost Riemann solitons and their gradient counterparts within the framework of relativistic bulk‐viscous fluid string (BVFS) geometries. We begin by analyzing the potential vector field. It is shown that, on BVFS backgrounds, this potential vector must coincide with a torse‐forming field which is ...
Mehdi Jafari +2 more
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Timelike Ruled Surfaces in de-Sitter 3-Space
, 2020 In this paper, timelike ruled surfaces are studied in de-Sitter space S31. A ruled surface in the de-Sitter space S31 is obtained by moving a geodesic along a curve.
Mert, Tuğba, Tuğba MERT
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Spacelike and Timelike Admissible Smarandache Curves in Pseudo-Galilean Space [PDF]
, 2015 In this paper, space and timelike admissible Smarandache curves in the pseudo- Galilean space are investigated. Also, Smarandache curves of the position vector of space and timelike arbitrary curve and some of its special curves are obtained.
M. Khalifa Saad
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Generalized Z‐Solitons on LP‐Sasakian Manifolds With the General Connection
Journal of Mathematics, Volume 2026, Issue 1, 2026.This work focuses on LP‐Sasakian manifolds endowed with generalized Z‐solitons constructed with respect to an arbitrary affine connection. To conclude, we provide an explicit and nontrivial example in the four‐dimensional case, thereby establishing the realization of such solitons on LP‐Sasakian manifolds.
Shahroud Azami +2 more
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Embeddedness of timelike maximal surfaces in (1+2)-Minkowski Space [PDF]
, 2020 We prove that if ϕ: R2→ R1 + 2 is a smooth, proper, timelike immersion with vanishing mean curvature, then necessarily ϕ is an embedding, and every compact subset of ϕ(R2) is a smooth graph.
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