Results 21 to 30 of about 340,959 (272)

Inflation from a ripple on a vanishing potential [PDF]

open access: yesPhysics Letters B, 1985
Abstract We propose a very simple model of inflation having essentially one free parameter, the value of which is fixed by the amplitude and scale independence of energy density fluctuations. The model, based on the maximally symmetric supergravity with SU( n ,1) manifold, has an asymptotically flat inflaton potential. All inflationary conditions can
K. Enqvist, D.V. Nanopoulos, M. Quiros
openaire   +1 more source

ISR mRNAs as potential blood biomarkers in patients with vanishing white matter

open access: yesBrain Disorders, 2023
Vanishing white matter (VWM) is a leukodystrophy caused by bi-allelic pathogenic variants in the eukaryotic initiation factor 2B (eIF2B). eIF2B orchestrates the integrated stress response (ISR), a physiological response to cellular stress.
Ellen Oudejans   +6 more
doaj   +1 more source

Nonlinear Schrödinger equations with vanishing and decaying potentials

open access: yesDifferential and Integral Equations, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ambrosetti, A., Wang, Z.-Q.
openaire   +3 more sources

Existence of least energy nodal solution for Kirchhoff–Schrödinger–Poisson system with potential vanishing

open access: yesBoundary Value Problems, 2020
This paper deals with the following Kirchhoff–Schrödinger–Poisson system: { − ( a + b ∫ R 3 | ∇ u | 2 d x ) Δ u + V ( x ) u + ϕ u = K ( x ) f ( u ) in  R 3 , − Δ ϕ = u 2 in  R 3 , $$ \textstyle\begin{cases} -(a+b\int _{\mathbb{R}^{3}} \vert \nabla u ...
Jin-Long Zhang, Da-Bin Wang
doaj   +1 more source

Weyl’s gauge argument [PDF]

open access: yes, 2013
The standard U(1) “gauge principle” or “gauge argument” produces an exact potential A=dλ and a vanishing field F=ddλ=0. Weyl has his own gauge argument, which is sketchy, archaic and hard to follow; but at least it produces an inexact potential A and a ...
Alexander Afriat   +27 more
core   +4 more sources

Ionization Probabilities through ultra-intense Fields in the extreme Limit [PDF]

open access: yes, 1997
We continue our investigation concerning the question of whether atomic bound states begin to stabilize in the ultra-intense field limit. The pulses considered are essentially arbitrary, but we distinguish between three situations.
A Fring   +55 more
core   +3 more sources

Critical fractional p-Laplacian problems with possibly vanishing potentials

open access: yesJournal of Mathematical Analysis and Applications, 2016
We obtain nontrivial solutions of a critical fractional $p$-Laplacian equation in the whole space and with possibly vanishing potentials. In addition to the usual difficulty of the lack of compactness associated with problems involving critical Sobolev exponents, the problem is further complicated by the absence of a direct sum decomposition suitable ...
Perera, K., Squassina, Marco, Yang, Y.
openaire   +4 more sources

Nondecoupling in multi-Higgs doublet models

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
We consider models with any number of Higgs doublets and study the conditions for decoupling. We show that, under very general circumstances, all the quadratic coefficients of the scalar potential must be present, except in special cases, which include ...
Francisco Faro   +2 more
doaj   +1 more source

N=8 non-BPS Attractors, Fixed Scalars and Magic Supergravities [PDF]

open access: yes, 2007
We analyze the Hessian matrix of the black hole potential of N=8, d=4 supergravity, and determine its rank at non-BPS critical points, relating the resulting spectrum to non-BPS solutions (with non-vanishing central charge) of N=2, d=4 magic ...
Ferrara, S., Marrani, A.
core   +1 more source

Schrödinger equations with vanishing potentials involving Brezis-Kamin type problems

open access: yesDiscrete & Continuous Dynamical Systems, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Cardoso, Jose Anderson   +3 more
openaire   +2 more sources

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