Results 31 to 40 of about 6,995,740 (255)
Bounce Universe with Finite-Time Singularity
Universe, 2022 This work explains how the presence of a Type-IV singularity (a mild singularity) can influence the dynamics of a bouncing universe. In particular, we examine the bounce cosmology that appears with a Type-IV singularity in the context of a ghost-free ...
Sergei D. Odintsov, Tanmoy Paul
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Singularity in signal theory [PDF]
International Journal of Control, 2008 A discrete-time random signal is singular if its values are singular random variables defined by a distribution function continuous but with a derivative equal to zero almost everywhere. Singular random signals can be obtained at the output of some linear filters when the input is a discrete-valued white noise. Sufficient conditions for singularity are
openaire +2 more sources
$F$-singularities: applications of characteristic $p$ methods to singularity theory [PDF]
, 2014 This is a survey article on $F$-singularities and their applications.
S. Takagi, Kei-ichi Watanabe
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Singularity development and supersymmetry in holography
Journal of High Energy Physics, 2017 We study the effects of supersymmetry on singularity development scenario in holography presented in [1] (BBL). We argue that the singularity persists in a supersymmetric extension of the BBL model. The challenge remains to find a string theory embedding
Alex Buchel
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Analyticity of the total ancestor potential in singularity theory [PDF]
, 2013 K. Saito's theory of primitive forms gives a natural semi-simple Frobenius manifold structure on the space of miniversal deformations of an isolated singularity.
T. Milanov
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A holographic kaleidoscope for N $$ \mathcal{N} $$ = 1*
Journal of High Energy Physics, 2019 We study in detail the recently-found family of asymptotically AdS5 × S 5 type IIB supergravity solutions dual to the N $$ \mathcal{N} $$ = 1* SYM theory with equal masses.
Nikolay Bobev +3 more
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The Drinfeld-Grinberg-Kazhdan Theorem for formal schemes and singularity theory
, 2017 Let k be a field. In this article, we provide an extended version of the Drinfeld-Grinberg-Kazhdan Theorem in the context of formal geometry. We prove that, for every formal scheme V topologically of finite type over Spf(k[[T ]]), for every non-singular ...
David Bourqui, J. Sebag
semanticscholar +1 more source
Naked singularity, firewall, and Hawking radiation
Scientific Reports, 2017 Spacetime singularity has always been of interest since the proof of the Penrose-Hawking singularity theorem. Naked singularity naturally emerges from reasonable initial conditions in the collapsing process.
Hongsheng Zhang
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Gravitational Collapse and Singularity Removal in Rastall Theory
Advances in High Energy Physics, 2021 In the present work, we study spherically symmetric gravitational collapse of a homogeneous fluid in the framework of Rastall gravity. Considering a nonlinear equation of state (EoS) for the fluid profiles, we search for a class of nonsingular collapse ...
Ehsan Dorrani
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Gravitational perfect fluid collapse in Gauss–Bonnet gravity
European Physical Journal C: Particles and Fields, 2017 The Einstein Gauss–Bonnet theory of gravity is the low-energy limit of heterotic super-symmetric string theory. This paper deals with gravitational collapse of a perfect fluid in Einstein–Gauss–Bonnet gravity by considering the Lemaitre–Tolman–Bondi ...
G. Abbas, M. Tahir
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