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ON THE CONHARMONIC CURVATURE TENSOR OF A LOCALLY CONFORMAL ALMOST COSYMPLECTIC MANIFOLD
Abood, Habeeb M.,Al-Hussaini, Farah H. Korean Mathematical Society 2020 대한수학회논문집 Vol.35 No.1
This paper aims to study the geometrical properties of the conharmonic curvature tensor of a locally conformal almost cosymplectic manifold. The necessary and sufficient conditions for the conharmonic curvature tensor to be flat, the locally conformal almost cosymplectic manifold to be normal and an η-Einstein manifold were determined.
The Impact of Global Oil Price Fluctuations on Economic Growth in Iraq by using VAR Model
Abdul Rahman Karim Abdul Ridha Al-Taie,Hussein Breesam Habeeb,Saad H. Khalaf 대한산업공학회 2022 Industrial Engineeering & Management Systems Vol.21 No.4
In this research economic growth is one of the concepts that developed and developing countries alike have been taken into account. This research touched on the most important components of the Iraqi oil sector. The role of this sector and the extent of its contribution to the gross domestic product, which is denominated in US dollars according to a base year 2010. Therefore, it became necessary to clarify the concept of economic growth. Thus, it became nec-essary for Iraq to maximize the rates of economic growth, which was closely linked to the oil sector, which has be-come the only sector that feeds the rest of the sectors. The researcher adopted a set of standard formulas to demon-strate the impact of oil price fluctuations on Iraqi economic growth, and concluded that: Vector Auto Regression model (VAR) is the model adopted for the data of the variables of the Iraqi economy. After conducting an estima-tion, it was discovered that the linear formula produced the best results and had the highest value for the determina-tion coefficient, and that the Cranger causality test revealed the existence of a statistically significant reciprocal rela-tionship between the variables considered for the period 1970-2015.