scholarly journals Stable exact cosmological solutions in induced gravity models

2014 ◽  
Author(s):  
Ekaterina O. Pozdeeva ◽  
Sergey Yu. Vernov
Keyword(s):  
Gravity Models ◽  
Induced Gravity ◽  
Cosmological Solutions

scholarly journals Induced Gravity Models with Exact Bounce Solutions

2018 ◽  
Vol 49 (5) ◽  
pp. 914-917 ◽  
Author(s):  
E. O. Pozdeeva ◽  
S. Yu. Vernov
Keyword(s):  
Gravity Models ◽  
Induced Gravity

scholarly journals Flattening the inflaton potential beyond minimal gravity

2018 ◽  
Vol 168 ◽  
pp. 06001 ◽  
Author(s):  
Hyun Min Lee
Keyword(s):  
Standard Model ◽  
Higgs Field ◽  
Gravity Models ◽  
Induced Gravity ◽  
Consistent Description ◽  
The Standard Model ◽  
Self Consistent ◽  
The Status

We review the status of the Starobinsky-like models for inflation beyond minimal gravity and discuss the unitarity problem due to the presence of a large non-minimal gravity coupling. We show that the induced gravity models allow for a self-consistent description of inflation and discuss the implications of the inflaton couplings to the Higgs field in the Standard Model.

Cosmological Solutions of Some Nonlocal Gravity Models

2019 ◽  
Vol 306 (1) ◽  
pp. 66-73
Author(s):  
I. Dimitrijevic ◽  
B. Dragovich ◽  
Z. Rakic ◽  
J. Stankovic
Keyword(s):  
Gravity Models ◽  
Cosmological Solutions

Analysis of exploitation‐induced gravity changes at Wairakei Geothermal Field

Geophysics ◽  
1986 ◽  
Vol 51 (8) ◽  
pp. 1647-1660 ◽  
Author(s):  
Richard G. Allis ◽  
Trevor M. Hunt
Keyword(s):  
Geothermal Field ◽  
Gravity Change ◽  
Gravity Models ◽  
Liquid Temperature ◽  
Surrounding Area ◽  
Liquid Pressure ◽  
Induced Gravity ◽  
Gravity Changes ◽  
Flow Equilibrium ◽  
The 1960S

Gravity changes (corrected for subsidence) of up to -1 000 (±300) μGal have occurred in the [Formula: see text] area of the production bore field at Wairakei, and smaller decreases extend over a [Formula: see text] surrounding area. The largest part of these decreases occurred during the 1960s; since then the net gravity change for the whole field has been zero, indicating mass flow equilibrium. The principal causes of gravity change have been deep liquid pressure drawdown which resulted in formation of a steam zone, subsequent saturation changes in the steam zone, liquid temperature decline, and groundwater level changes. Gravity models suggest saturation of the steam zone was 0.7 (±0.1) in 1962 and decreased to 0.6 by 1972. Gravity increases in the northern and eastern bore field since the early 1970s are attributed to cool water invading the steam zone.

Inflation and reheating in induced-gravity models

1990 ◽  
Vol 41 (8) ◽  
pp. 2398-2407 ◽  
Author(s):  
S. Barr ◽  
G. Segrè
Keyword(s):  
Gravity Models ◽  
Induced Gravity

Determinants of Brazilian Exports by Levels of Technological Intensity: A Gravity Model Analysis Using the PPML Estimator

2019 ◽  
Vol 10 (9) ◽  
pp. 861-879
Author(s):  
Edson Roberto Vieira ◽  
◽  
Daniel Henrique Alves Reis ◽  
Keyword(s):  
International Market ◽  
Positive Influence ◽  
Gravity Models ◽  
Transport Costs ◽  
Consumer Market ◽  
Technology Products ◽  
The Us ◽  
Trading Partners ◽  
Negative Impacts ◽  
Technological Intensity

The objective of this study is to analyze the determinants of Brazilian exports by levels of technological intensity in the period 2000-2015. Gravity models were estimated for total of the exports and for each type of exports by levels of technological intensity, using the PPML-estimator. The study indicates that there is a process of concentration of Brazilian exports in low technology and medium-low technology products, at the same period in which China's share of total Brazilian shipments abroad grew. Estimates of empirical gravity models have shown that the income and size of the consumer market of Brazil’s trading partners seem to have the greatest positive influence on the Brazilian exports. Indications of this study are that the Brazil should continue to diversify its trading partners to minimize the impacts of a possible reduction of the economic growth of large trading partners (such as China and the US) on its exports and increase its exports of products with greater technological intensity. The results also highlight the need for Brazil to make greater efforts to increase its competitiveness in the international market to reduce the negative impacts of transport costs on the final prices of products exported by the country.

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