Results 71 to 80 of about 3,753,549 (263)
Scattering of massive Dirac fields on the Schwarzschild black hole spacetime
, 2000 With a generally covariant equation of Dirac fields outside a black hole, we develop a scattering theory for massive Dirac fields. The existence of modified wave operators at infinity is shown by implementing a time-dependent logarithmic phase shift from
Bachelot A +17 more
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La relève : un lieu de construction du collectif pour gérer la sécurité
Perspectives Interdisciplinaires sur le Travail et la Santé, 2015 Serious accidents, which occurred in road tunnels in the 2000’s, have revealed specific risks related to tunnels, along with safety management issues. The lessons learned analyses are one resource used by tunnel operators, supported by the French Tunnel ...
Christelle Casse +2 more
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The Regge limit of AdS3 holographic correlators with heavy states: towards the black hole regime
Journal of High Energy Physics, 2021 We examine the Regge limit of holographic 4-point correlation functions in AdS3 × S 3 involving two heavy and two light operators. In this kinematic regime such correlators can be reconstructed from the bulk phase shift accumulated by the light probe as ...
Nejc Čeplak, Marcel R. R. Hughes
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, 2005 Inspired by a statement of W. Luh asserting the existence of entire functions having together with all their derivatives and antiderivatives some kind of additive universality or multiplicative universality on certain compact subsets of the complex ...
Bernal González, Luis +1 more
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Some properties of shift operators on algebras generated by $*$-polynomials
Karpatsʹkì Matematičnì Publìkacìï, 2018 A $*$-polynomial is a function on a complex Banach space $X,$ which is a sum of so-called $(p,q)$-polynomials. In turn, for non-negative integers $p$ and $q,$ a $(p,q)$-polynomial is a function on $X,$ which is the restriction to the diagonal of some ...
T.V. Vasylyshyn
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THE OPERATOR SHIFT SPACE [PDF]
Proceedings of the Edinburgh Mathematical Society, 2008 AbstractWe construct and examine an operator space $X$, isometric to $\ell_2$, such that every completely bounded map from its subspace $Y$ into $X$ is a compact perturbation of a linear combination of multiples of a shift of given multiplicity and their adjoints. Moreover, every completely bounded map on $X$ is a Hilbert–Schmidt perturbation of such a
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Bulk phase shift, CFT Regge limit and Einstein gravity
Journal of High Energy Physics, 2018 The bulk phase shift, related to a CFT four-point function, describes two-to-two scattering at fixed impact parameter in the dual AdS spacetime. We describe its properties for a generic CFT and then focus on large N CFTs with classical bulk duals.
Manuela Kulaxizi +2 more
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Journal of High Energy Physics, 2023 Massive fields on anti-de Sitter (AdS) space enjoy galileon-like shift symmetries at particular values of their masses. We explore how these shift symmetries are realized through the boundary conformal field theory (CFT), at the level of the 2-point ...
Erin Blauvelt +2 more
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Translation on Graphs: An Isometric Shift Operator [PDF]
IEEE Signal Processing Letters, 2015 In this letter, we propose a new shift operator for graph signals, enforcing that our operator is isometric. Doing so, we ensure that as many properties of the time shift as possible get carried over. Finally, we show that our operator behaves reasonably for graph signals.
Girault, Benjamin +2 more
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Inverse problems, trace formulae for discrete Schr\"odinger operators [PDF]
, 2011 We study discrete Schroedinger operators with compactly supported potentials on the square lattice. Constructing spectral representations and representing S-matrices by the generalized eigenfunctions, we show that the potential is uniquely reconstructed ...
Isozaki, Hiroshi, Korotyaev, Evgeny
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