Results 21 to 30 of about 8,909 (266)

Singularities in Horava–Lifshitz theory [PDF]

open access: yesPhysics Letters B, 2010
Revtex4, six figures. Version to appear in Phys.
Cai, Rong-Gen, Wang, Anzhong
openaire   +2 more sources

On singular fibres in F-theory [PDF]

open access: yesJournal of High Energy Physics, 2013
In this paper, we propose a connection between the field theory local model (Katz-Vafa field theory) and the type of singular fibre in flat crepant resolutions of elliptic Calabi-Yau fourfolds, a class of fourfolds considered by Esole and Yau. We review the analysis of degenerate fibres for models with gauge groups SU(5) and SO(10) in detail, and ...
Braun, Andreas P., Watari, Taizan
openaire   +2 more sources

Higher-Dimensional Geometry and Singularity Structure of Osculating Type-II Ruled Surfaces in Lorentzian Spaces

open access: yesMathematics
In Minkowski 3-space, we establish a geometric framework to osculate Type-II ruled surfaces by utilizing the Type-II Bishop frame in (E13). Our analysis extends to higher-order singularities such as butterflies and pyramids, including explicit ...
Mohammed Messaoudi   +4 more
doaj   +1 more source

A non-singular theory of gravity? [PDF]

open access: yesPhysics Letters B, 1994
8 pages, RevTeX, 3 figures included in compressed form, UTPT-94 ...
Cornish, Neil J., Moffat, John W.
openaire   +2 more sources

Kinematic and Singularity Analysis of PRoM-120 – A Parallel Robotic Manipulator with 2-PRU/PRS Kinematic Chains

open access: yesRekayasa Mesin, 2019
PRoM-120 was a parallel robotic manipulator which constructed by 2-PRU/PRS kinematic chains. The mobility of this manipulator was 3 DOF, i.e. 1 translational DOF, and 2 rotational DOF (1T2R).
Adriyan Adriyan, Sufiyanto Sufiyanto
doaj   +1 more source

Resolution of Cosmological Singularity in Hořava–Lifshitz Cosmology

open access: yesUniverse, 2023
The standard ΛCDM model, despite its agreement with observational data, still has some issues unaddressed, such as the problem of initial singularity. Solving that problem usually requires modifications of general relativity.
Ewa Czuchry
doaj   +1 more source

Orbifolds and finite group representations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
We present our recent understanding on resolutions of Gorenstein orbifolds, which involves the finite group representation theory. We concern only the quotient singularity of hypersurface type.
Li Chiang, Shi-Shyr Roan
doaj   +1 more source

Interior structure and complexity growth rate of holographic superconductor from M-theory

open access: yesJournal of High Energy Physics, 2022
We study the interior dynamics of a top-down holographic superconductor from M-theory. The condense of the charged scalar hair necessarily removes the inner Cauchy horizon and the spacetime ends at a spacelike singularity.
Yu-Sen An   +3 more
doaj   +1 more source

The generic sudden singularity in Brans–Dicke theory

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
We construct a formal asymptotic series expansion for a general solution of the Brans–Dicke equations with a fluid source near a sudden singularity. This solution contains 11 independent arbitrary functions of the spatial coordinates as required by the ...
John D. Barrow   +2 more
doaj   +1 more source

Cosmology from Newton–Chern–Simons gravity

open access: yesNuclear Physics B, 2020
We study a five-dimensional non-relativistic gravity theory whose action is composed of a gravitational sector and a sector of matter where the gravitational sector is given by the so called Newton–Chern–Simons gravity and where the matter sector is ...
S. Lepe, G. Rubio, P. Salgado
doaj   +1 more source

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