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Constantinescu, Oana Korean Mathematical Society 2008 대한수학회지 Vol.45 No.5
In this paper we define a Myller configuration in a Finsler space and use some special configurations to obtain results about Finsler subspaces. Let $F^{n}$ = (M,F) be a Finsler space, with M a real, differentiable manifold of dimension n. Using the pull back bundle $({\pi}^{*}TM,\tilde{\pi},\widetilde{TM})$ of the tangent bundle $(TM,{\pi},M)$ by the mapping $\tilde{\pi}={\pi}/TM$ and the Cartan Finsler connection of a Finsler space, we obtain an orthonormal frame of sections of ${\pi}^{*}TM$ along a regular curve in $\widetilde{TM}$ and a system of invariants, geometrically associated to the Myller configuration. The fundamental equations are written in a very simple form and we prove a fundamental theorem. Important lines in a Finsler subspace are defined like special lines in a Myller configuration, geometrically associated to the subspace: auto parallels, lines of curvature, asymptotes. Torse forming vector fields with respect to the Cartan Finsler connection are characterized by means of the invariants of the Frenet frame of a versor field along a curve, and the new notion of torse forming vector fields in the sense of Myller is introduced. The particular cases of concurrence and parallelism in the sense of Myller are completely studied, for vector fields from the distribution $T^m$ of the Myller configuration and also from the normal distribution $T^p$.
C. Constantinescu,V. Ion,M. Codescu,P. Rotaru,M. Dinescu 한국물리학회 2013 Current Applied Physics Vol.13 No.9
NdFeB thin films, showing a notable out-of-plane c-axis texture, were prepared by radiofrequencyplasma-assisted pulsed laser deposition technique. Their optical, morphological and magnetic propertieswere investigated. Thermal analysis was performed in order to evaluate the thermal behaviour andstability, in air, and in nitrogen dynamic atmospheres. The effects of deposition time, nitrogen and argonplasma use, and substrate temperature, are discussed.
Oana Constantinescu 대한수학회 2008 대한수학회지 Vol.45 No.5
In this paper we define a Myller configuration in a Finsler space and use some special configurations to obtain results about Finsler subspaces. Let Fn=(M, F) be a Finsler space, with M a real, differentiable manifold of dimension n. Using the pull back bundle (π*TM, π,gTM) of the tangent bundle (TM, π,M) by the mapping π = π/TM and the Cartan Finsler connection of a Finsler space, we obtain an orthonormal frame of sections of π*TM along a regular curve in TM and a system of invariants, geometrically associated to the Myller configuration. The fundamental equations are written in a very simple form and we prove a fundamental theorem. Important lines in a Finsler subspace are defined like special lines in a Myller configuration, geometrically associated to the subspace: auto parallels, lines of curvature, asymptotes. Torse forming vector fields with respect to the Cartan Finsler connection are characterized by means of the invariants of the Frenet frame of a versor field along a curve, and the new notion of torse forming vector fields in the sense of Myller is introduced. The particular cases of concurrence and parallelism in the sense of Myller are completely studied, for vector fields from the distribution Tm of the Myller configuration and also from the normal distribution Tp. In this paper we define a Myller configuration in a Finsler space and use some special configurations to obtain results about Finsler subspaces. Let Fn=(M, F) be a Finsler space, with M a real, differentiable manifold of dimension n. Using the pull back bundle (π*TM, π,gTM) of the tangent bundle (TM, π,M) by the mapping π = π/TM and the Cartan Finsler connection of a Finsler space, we obtain an orthonormal frame of sections of π*TM along a regular curve in TM and a system of invariants, geometrically associated to the Myller configuration. The fundamental equations are written in a very simple form and we prove a fundamental theorem. Important lines in a Finsler subspace are defined like special lines in a Myller configuration, geometrically associated to the subspace: auto parallels, lines of curvature, asymptotes. Torse forming vector fields with respect to the Cartan Finsler connection are characterized by means of the invariants of the Frenet frame of a versor field along a curve, and the new notion of torse forming vector fields in the sense of Myller is introduced. The particular cases of concurrence and parallelism in the sense of Myller are completely studied, for vector fields from the distribution Tm of the Myller configuration and also from the normal distribution Tp.
Trade in Developing East Asia: How It Has Changed and Why It Matters
Cristina Constantinescu,Aaditya Mattoo,Michele Ruta 대외경제정책연구원 2018 East Asian Economic Review Vol.22 No.4
East Asia, for long the epitome of successful engagement in trade, faces serious challenges: technological change that may threaten the very model of labor intensive industrialization and a backlash against globalization that may reduce access to important markets. The analysis in this article suggests that how East Asia copes with these global challenges will depend on how it addresses three more proximate national and regional challenges. The first is the emergence of China as a global trade giant, which is fundamentally altering the trading patterns and opportunities of its neighbors. The second is the asymmetric implementation of national reform – in goods trade and investment versus services – which is affecting the evolution of comparative advantage and productivity in each country. The third is the divergence between the relatively shallow and fragmented agreements that regulate the region's trade and investment and the growing importance of regional and global value chains as crucial drivers of productivity growth.