4 research outputs found

    Real Hypersurfaces of Type A in Complex Two-Plane Grassmannians Related to The Reeb Vector Field

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    Y. J. Suh and H. Lee (Bull. Korean. Math. Soc. 47, 551-561 (2010)) characterized real hypersurfaces MM of type BB by the invariance of vector bundle JTM⊥JTM^\perp under the shape operator and the orthogonality of JTM⊥JTM^\perp and JTM⊥\mathcal {J}TM^\perp, where TM⊥TM^\perp, JJ and J\mathcal J are the normal bundle of MM, K\"ahler structure and Quaternionic K\"ahler structure of G2(Cm+2)G_2({\mathbb{C}}^{m+2}) respectively. In this paper, we characterize real hypersurfaces MM of type A by the invariance of the vector bundle JTM⊥JTM^\perp under the shape operator with the Reeb vector field in JTM⊥\mathcal {J}TM^\perp.Comment: 8 page

    Alternative Approach to Determination of Malaysian Economic Behaviour

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    This study documents significant findings on the determination of Malaysian economic behaviour in relation to its close trading partners. The data series for this study were from Malaysia, the USA, and China, over a 25-year period. The test procedure incorporated a fully specified Auto Regressive Distributed Lag (ARDL) model with optimum lags being identified from high R-Squared value and the absence of serial correlation. The gross domestic product and industrial production indices were accounted for to re-examine a macroeconomic modelling approach to determination of the Malaysian economy. The results affirmed evidence of significant explanatory role of American and Chinese lagged GDP and IPI in determining the Malaysian economy. Our test results further identified a significant long-run interdependence between Malaysian economy and its major trading partners. In our view, these findings, given the appropriate econometric methodology, suggested significant policy implications concerning the timing and accuracy of risk management practices in preventing economic crisis to occur in Malaysia
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