Results 71 to 80 of about 2,145,484 (200)

A Bimodal Extension of the Beta-Binomial Distribution with Applications

Axioms
In this paper, we propose an alternative distribution to model count data exhibiting uni/bimodality. It arises as a weighted version of the beta-binomial distribution, which is defined by a parametric weight function that admits up to two modes for the ...
Jimmy Reyes, Josu Najera-Zuloaga, Dae-Jin Lee, Jaime Arrué, Yuri A. Iriarte   +4 more
doaj   +1 more source

Multivariate Extended Gamma Distribution

Axioms, 2017
In this paper, I consider multivariate analogues of the extended gamma density, which will provide multivariate extensions to Tsallis statistics and superstatistics.
Dhannya P. Joseph
doaj   +1 more source

Moments and Semi-Moments for fuzzy portfolios selection [PDF]

The aim of this paper is to consider the moments and the semi-moments (i.e semi-kurtosis) for portfolio selection with fuzzy risk factors (i.e. trapezoidal risk factors).
Christian Tassak, Jules Sadefo Kamdem, Louis Aimé Fono   +2 more
core  

Revising the multipole moments of numerical spacetimes, and its consequences

, 2012
Identifying the relativistic multipole moments of a spacetime of an astrophysical object that has been constructed numerically is of major interest, both because the multipole moments are intimately related to the internal structure of the object, and ...
George Pappas, H. Komatsu, J. L. Friedman, Theocharis A. Apostolatos   +3 more
core   +1 more source

Orbital magnetic moments in insulating Dirac systems: Impact on magnetotransport in graphene van der Waals heterostructures

, 2014
In honeycomb Dirac systems with broken inversion symmetry, orbital magnetic moments coupled to the valley degree of freedom arise due to the topology of the band structure, leading to valley-selective optical dichroism.
Grujić, Marko M., Peeters, François M., Tadić, Milan Ž.   +2 more
core   +1 more source

Mathematical Calculations for the Design of Elliptical Isolated Foundations with Optimal Cost

Mathematics
This paper presents an optimal model for the design of elliptical isolated footings subjected to biaxial bending under the minimum cost criterion, assuming that the footing rests on elastic soils and that the soil pressure distribution is linear.
Eyran Roberto Diaz-Gurrola, Arnulfo Luévanos-Rojas, Griselda Santiago-Hurtado, Victor Manuel Moreno-Landeros, Aldo Emelio Landa-Gómez   +4 more
doaj   +1 more source

CHARACTERIZATION OF DIESEL SPRAY IMAGES USING A SHAPE PROCESSING METHODOLOGY

Image Analysis and Stereology, 2011
In Diesel engines, a key element in achieving a clean and efficient combustion process is a proper fuel-air mixing, which is a consequence of the fuel spray development and fuel-air interaction inside the engine combustion chamber.
Cecile Petit, Wolfgang Reckers, Jean-Marie Becker, Michel Jourlin   +3 more
doaj   +1 more source

On some Integral Representations of Certain G-Functions

Axioms, 2015
This is a brief exposition of some statistical techniques utilized to obtain several useful integral equations involving G-functions.
Seemon Thomas
doaj   +1 more source

On order statistics from the Gompertz–Makeham distribution and the Lambert W function

Mathematical Modelling and Analysis, 2013
The aim of this paper is twofold. First, we show that the expected value of the minimum order statistic from the Gompertz-Makeham distribution can be expressed in closed form in terms of the incomplete gamma function.
Pedro Jodra
doaj   +1 more source

Heterogeneous Responses of Energy and Non-Energy Assets to Crises in Commodity Markets

Energies
In this study, we investigate the heterogeneity in energy and non-energy commodities by analyzing their four realized moments: returns, realized volatility, realized skewness and realized kurtosis.
Dimitrios Vortelinos, Angeliki Menegaki, Ioannis Passas, Alexandros Garefalakis, Georgios Viskadouros   +4 more
doaj   +1 more source