Results 1 to 10 of about 480,786 (251)

Multi-integral representations for Jacobi functions of the first and second kind

open access: yesArab Journal of Basic and Applied Sciences, 2023
One may consider the generalization of Jacobi polynomials and the Jacobi function of the second kind to a general function where the degree is allowed to be a complex number instead of a non-negative integer.
Howard S. Cohl, Roberto S. Costas-Santos
doaj   +1 more source

Asymptotic Expected Utility of Dividend Payments in a Classical Collective Risk Process

open access: yesRisks, 2023
We find the asymptotics of the value function maximizing the expected utility of discounted dividend payments of an insurance company whose reserves are modeled as a classical Cramér risk process, with exponentially distributed claims, when the initial ...
Sebastian Baran   +2 more
doaj   +1 more source

A New Extension of the Kumaraswamy Exponential Model with Modeling of Food Chain Data

open access: yesAxioms, 2023
Statistical models are useful in explaining and forecasting real-world occurrences. Various extended distributions have been widely employed for modeling data in a variety of fields throughout the last few decades.
Eman A. Eldessouky   +5 more
doaj   +1 more source

Different Estimation Methods for New Probability Distribution Approach Based on Environmental and Medical Data

open access: yesAxioms, 2023
In this article, we introduce a new extension of the power Lomax (PLo) model by combining the type II exponentiated half-logistic class of statistical models and the PLo model.
Eid A. A. Hassan   +5 more
doaj   +1 more source

Packing Three Cubes in D-Dimensional Space

open access: yesMathematics, 2021
Denote Vn(d) the least number that every system of n cubes with total volume 1 in d-dimensional (Euclidean) space can be packed parallelly into some rectangular parallelepiped of volume Vn(d).
Zuzana Sedliačková, Peter Adamko
doaj   +1 more source

Medical image edge detection in the framework of quantum representations

open access: yesAlexandria Engineering Journal, 2023
The utilization of automated techniques for processing and analyzing medical images can offer significant support to doctors in their diagnostic and therapeutic practices. This study focuses on the complex task of detecting edges in medical images.
Ebtesam Al-Mansor   +3 more
doaj   +1 more source

An Entropy-Based Tool to Help the Interpretation of Common-Factor Spaces in Factor Analysis

open access: yesEntropy, 2021
This paper proposes a method for deriving interpretable common factors based on canonical correlation analysis applied to the vectors of common factors and manifest variables in the factor analysis model.
Nobuoki Eshima   +3 more
doaj   +1 more source

Assessing the impact of differentiated instruction on mathematics achievement and attitudes of secondary school learners

open access: yesSouth African Journal of Education, 2023
The aim of the study reported on here was to assess the impact of differentiated instruction in terms of mathematics achievement and the attitudes of secondary school learners to reveal their views on differentiated instruction.
Ayten Pinar Bal
doaj   +1 more source

Learning physical descriptors for materials science by compressed sensing [PDF]

open access: yes, 2016
The availability of big data in materials science offers new routes for analyzing materials properties and functions and achieving scientific understanding.
Ahmetcik, Emre   +6 more
core   +2 more sources

Impulsivity in Binary Choices and the Emergence of Periodicity

open access: yesDiscrete Dynamics in Nature and Society, 2009
Binary choice games with externalities, as those described by Schelling (1973, 1978), have been recently modelled as discrete dynamical systems (Bischi and Merlone, 2009).
Gian Italo Bischi   +2 more
doaj   +1 more source

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