Results 31 to 40 of about 201,081 (270)
Curvature-Restored Gauge Invariance and Ultraviolet Naturalness [PDF]
Advances in High Energy Physics, 2016 It is shown that (aΛ2+b|H|2)R in a spacetime of curvature R is a natural ultraviolet (UV) completion of (aΛ4+bΛ2|H|2) in the flat-spacetime Standard Model (SM) with Higgs field H, UV scale Λ, and loop factors a and b. This curvature completion rests on the fact that Λ-mass gauge theory in flat spacetime turns, on the cut view R=4Λ2, into a massless ...
openaire +5 more sources
Generic Three-Parameter Wormhole Solution in Einstein-Scalar Field Theory
Particles, 2021 An exact analytical, spherically symmetric, three-parametric wormhole solution has been found in the Einstein-scalar field theory, which covers the several well-known wormhole solutions.
Bobur Turimov +3 more
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Operator models and Arveson's curvature invariant [PDF]
Banach Center Publications, 2005 The paper discusses possible extensions of Arveson´s curvature invariant to more general model operators. It turns out that everything works fine as long as the model has a complete NP-kernel, otherwise the curvature invariant either need not exist or need not be an integer.
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Curvature Invariants for Lorentzian Traversable Wormholes [PDF]
Universe, 2020 The curvature invariants of three Lorentzian wormholes are calculated and plotted in this paper. The plots may be inspected for discontinuities to analyze the traversability of a wormhole. This approach was formulated by Henry, Overduin, and Wilcomb for black holes (Henry et al., 2016).
Brandon Mattingly +10 more
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Curvature Invariants for the Alcubierre and Natário Warp Drives
Universe, 2021 A process for using curvature invariants is applied to evaluate the metrics for the Alcubierre and the Natário warp drives at a constant velocity. Curvature invariants are independent of coordinate bases, so plotting these invariants will be free of ...
Brandon Mattingly +11 more
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Improved Chen’s Inequalities for Submanifolds of Generalized Sasakian-Space-Forms
Axioms, 2022 In this article, we derive Chen’s inequalities involving Chen’s δ-invariant δM, Riemannian invariant δ(m1,⋯,mk), Ricci curvature, Riemannian invariant Θk(2≤k≤m), the scalar curvature and the squared of the mean curvature for submanifolds of generalized ...
Yanlin Li +3 more
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Invariant death [version 1; referees: 2 approved]
F1000Research, 2016 In nematodes, environmental or physiological perturbations alter death’s scaling of time. In human cancer, genetic perturbations alter death’s curvature of time.
Steven A. Frank
doaj +1 more source
Circle actions and scalar curvature
, 2015 We construct metrics of positive scalar curvature on manifolds with circle actions. One of our main results is that there exist $S^1$-invariant metrics of positive scalar curvature on every $S^1$-manifold which has a fixed point component of codimension ...
Wiemeler, Michael
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Invariants over Curvature Tensor Fields
Journal of Algebra, 1998 The author presents a construction of higher degree polynomial \(O(n)\)-invariants over the space of curvature tensor fields. Let \({\mathcal C}\) be the space of the curvature tensors on the real \(n\)-dimensional space \(V\), endowed with a dot product \(g\) (the elements of \({\mathcal C}\) are \(4\)-linear forms on \(V\), having the usual ...
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Ambient metric construction of Q-curvature in conformal and CR geometries
, 2003 We give a geometric derivation of Branson's Q-curvature in terms of the ambient metric associated with conformal structures; it naturally follows from the ambient metric construction of conformally invariant operators and can be applied to a large class ...
Fefferman, Charles, Hirachi, Kengo
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