This work aims at comparing two models of fuzzy distribution: Normal and Laplace, whenever they are inside the context of possibilistic mean-variance model described by Li et al. in [6], where fuzzy Normal distribution is used. We propose to make a comparison using their model, but instead we apply fuzzy Laplace distribution. We also demonstrate the theorems which are necessary for the inclusio...

The fund manager always pronounces “the high returns from hedge fund are along with low risk. Is the performance of hedge fund manager really good? In this study, the market-timing ability and performance consistency on hedge fund manager are tested. The Sharpe ratio was employed to implement the consistency of performance for mutual fund in the previous literature. Due to the non-normally dist...

JEL classification: C51 C52 G11

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In this work we propose a high-order discretization of the Baer-Nunziato two-phase flow model (Baer and Nunziato, Int. J. Multiphase Flow, 12 (1986), pp. 861-889) with closures for interface velocity pressure adapted to treatment discontinuous solutions, stiffened gas equations states. We use Galerkin spectral element method (DGSEM), based on collocation quadrature interpolation points (Kopriva...

As an ambient atmospheric pollutant, fine particulate matter (PM2.5) has posed significant adverse impacts on public health around the world. To attenuate population exposure risk to PM2.5 pollution, greenspace been considered as a promising approach. Little is known, however, about attenuating of landscapes risks at various locations, scales, and levels. This study employed hotspot analysis, w...