Results 31 to 40 of about 1,567,571 (289)
Microlensing, Newton-Einstein Gravity and Conformal Gravity [PDF]
, 1994 We discuss some implications of the current round of galactic dark matter searches for galactic rotation curve systematics and dynamics, and show that these new data do not invalidate the conformal gravity program of Mannheim and Kazanas which has been ...
Mannheim, Philip D.
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Axioms, 2023 Revealing the time structure of physical or biological objects is usually performed thanks to the tools of signal processing such as the fast Fourier transform, Ramanujan sum signal processing, and many other techniques.
Michel Planat +3 more
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International Journal of Geometric Methods in Modern Physics, 2014 We shall show equivalence between Palatini-f(ℛ) theories and Brans–Dicke (BD) theories at the level of action principles in generic dimension with generic matter coupling. We do that by introducing the Helmholtz Lagrangian associated to Palatini-f(ℛ) theory and then performing frame transformations in order to recover Einstein frame and BD frame. This
FATIBENE, Lorenzo, GARRUTO, SIMON
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Differential Geometrical Formulation of Gauge Theory of Gravity [PDF]
, 2002 Differential geometric formulation of quantum gauge theory of gravity is studied in this paper. The quantum gauge theory of gravity which is proposed in the references hep-th/0109145 and hep-th/0112062 is formulated completely in the framework of ...
Wu, Ning, Xu, Zhan, Zhang, Da-Hua
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Methods for Calculating Empires in Quasicrystals
Crystals, 2017 This paper reviews the empire problem for quasiperiodic tilings and the existing methods for generating the empires of the vertex configurations in quasicrystals, while introducing a new and more efficient method based on the cut-and-project technique ...
Fang Fang, Dugan Hammock, Klee Irwin
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General Relativity and Gravitation, 1993 Could COBE DMR be detecting the imprint from a spectrum of gravitational waves generated during inflation? The conventional inflationary prediction had been that the cosmic microwave anisotropy is dominated by energy density fluctuations generated during inflation and that the gravitational waves contribute negligibly.
Smoot, George F., Steinhardt, P.J.
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Quasicrystal Tilings in Three Dimensions and Their Empires
Crystals, 2018 The projection method for constructing quasiperiodic tilings from a higher dimensional lattice provides a useful context for computing a quasicrystal’s vertex configurations, frequencies, and empires (forced tiles).
Dugan Hammock, Fang Fang, Klee Irwin
doaj +1 more source
Flavour-kinematics duality for Goldstone modes
Journal of High Energy Physics, 2022 Three scalar effective field theories have special properties in terms of non-linear symmetries, soft limits and on-shell constructability that arise from their Goldstone nature: the non-linear σ-model, multi-DBI theory and the special Galileon.
Dijs de Neeling +2 more
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Effective action for non-geometric fluxes duality covariant actions
Journal of High Energy Physics, 2017 The (heterotic) double field theories and the exceptional field theories are manifestly duality covariant formulations, describing low-energy limit of various super-string and M-theory compactifications.
Kanghoon Lee +2 more
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Unavoidable Conflict Between Massive Gravity Models and Massive Topological Terms
, 2004 Massive gravity models in 2+1 dimensions, such as those obtained by adding to Einstein's gravity the usual Fierz-Pauli, or the more complicated Ricci scalar squared ($R^2$), terms, are tree level unitary.
ANTONIO ACCIOLY +3 more
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