Results 21 to 30 of about 31,173 (145)

Multiwave, Kinky breathers and multi-peak soliton solutions for the nonlinear Hirota dynamical system

open access: yesResults in Physics, 2020
The multi-wave solutions for nonlinear Hirota equation are obtained using logarithmic transformation and symbolic computation using the function method.
K. El-Rashidy   +3 more
doaj   +1 more source

Analytic Combinatorics of the Mabinogion Urn [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2008
The Mabinogion urn is a simple model of the spread of influences amongst versatile populations. It corresponds to a non-standard urn with balls of two colours: each time a ball is drawn, it causes a ball of the other kind to switch its colour.
Philippe Flajolet, Thierry Huillet
doaj   +1 more source

Digital in-line holography assessment for general phase and opaque particle [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2014
We propose using the circle polynomials to describe a particle’s transmission function in a digital holography setup. This allows both opaque and phase particles to be determined.
Coëtmellec S.   +5 more
doaj   +1 more source

Comparing the Simple to Complex Automatic Methods with the Ensemble Approach in Forecasting Electrical Time Series Data

open access: yesEnergies, 2023
The importance of forecasting in the energy sector as part of electrical power equipment maintenance encourages researchers to obtain accurate electrical forecasting models.
Winita Sulandari   +5 more
doaj   +1 more source

The unit ratio-extended Weibull family and the dropout rate in Brazilian undergraduate courses.

open access: yesPLoS ONE, 2023
We propose a new family of distributions, so-called the unit ratio-extended Weibull family ([Formula: see text]). It is derived from ratio transformation in an extended Weibull random variable.
Fernando A Peña-Ramírez   +2 more
doaj   +1 more source

Numerical computation of water and solitary waves by the double exponential transform

open access: yesJournal of Computational and Applied Mathematics, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kobayashi, K., Okamoto, H., Zhu, J.
openaire   +2 more sources

Temperature Rise Increases the Bioavailability of Marine Synechococcus-Derived Dissolved Organic Matter

open access: yesFrontiers in Microbiology, 2022
Synechococcus is one group of main primary producers and plays a key role in oceanic carbon fixation and transformation. To explore how the temperature rise affects the bioavailability of Synechococcus-derived dissolved organic matter (SOM) and whether ...
Jiajie Zhang   +11 more
doaj   +1 more source

Laplace–Fourier Transform of the Stretched Exponential Function: Analytic Error Bounds, Double Exponential Transform, and Open-Source Implementation “libkww” [PDF]

open access: yesAlgorithms, 2012
The C library libkww provides functions to compute the Kohlrausch–Williams– Watts function, i.e., the Laplace–Fourier transform of the stretched (or compressed) exponential function exp(-tβ ) for exponents β between 0.1 and 1.9 with double precision. Analytic error bounds are derived for the low and high frequency series expansions.
openaire   +4 more sources

Numerical Solution of Initial Value Problems Based on the Double Exponential Transformation

open access: yesPublications of the Research Institute for Mathematical Sciences, 2005
The purpose of this paper is to present a method for approximate solution of initial value problems of ordinary differential equation by the double exponential transformation. The original problem is transformed into a Volterra integral equation and it is solved via the indefinite integration formula derived by Muhammad and Mori.
Nurmuhammad, Ahniyaz   +2 more
openaire   +2 more sources

Truncated Moments for Heavy-Tailed and Related Distribution Classes

open access: yesMathematics, 2023
Suppose that ξ+ is the positive part of a random variable defined on the probability space (Ω,F,P) with the distribution function Fξ. When the moment Eξ+p of order p>0 is finite, then the truncated moment F¯ξ,p(x)=min1,Eξp1I{ξ>x}, defined for all x⩾0, is
Saulius Paukštys   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy