Results 11 to 20 of about 394,491 (124)

On Morrison’s definite integral [PDF]

open access: yesAequationes mathematicae, 2015
Física Teórica, Atómica y ...
Arias de Reyna, J.   +2 more
openaire   +6 more sources

A Canonical Form for Positive Definite Matrices [PDF]

open access: yes, 2020
We exhibit an explicit, deterministic algorithm for finding a canonical form for a positive definite matrix under unimodular integral transformations. We use characteristic sets of short vectors and partition-backtracking graph software.
Haensch, Anna   +3 more
core   +2 more sources

Calculation Of Rail Impedance Of Track Circuit Considering Earth Stratification

open access: yesJournal of Applied Science and Engineering, 2022
Rail impedance directly affects the transmission performance of track circuit. Considering the condition of earth stratification, it is difficult to calculate the rail impedance due to the semi-infinite integration interval and the oscillation of the ...
Bin Zhao, Jingning Ou, Dong Wang
doaj   +1 more source

On Matrix-Valued Square Integrable Positive Definite Functions [PDF]

open access: yes, 2015
In this paper, we study matrix valued positive definite functions on a unimodular group. We generalize two important results of Godement on square integrable positive definite functions to matrix valued square integrable positive definite functions.
He, Hongyu
core   +3 more sources

Calculation of the interband absorption spectra of amorphous semiconductors using the Kubo-Greenwood formula

open access: yesJournal of Applied Science and Engineering, 2022
A new method is presented for calculating the interband absorption spectrum for amorphous semiconductors using the Kubo-Greenwood formula in accordance with the Davis-Mott approximation method.
R.G. Ikramov   +5 more
doaj   +1 more source

A Self-Dual Integral Form of the Moonshine Module [PDF]

open access: yes, 2019
We construct a self-dual integral form of the moonshine vertex operator algebra, and show that it has symmetries given by the Fischer-Griess monster simple group.
Carnahan, Scott
core   +3 more sources

CALCULATION OF CUSTOMER SAVINGS USING THE DEFINITE INTEGRAL [PDF]

open access: yesეკონომიკური პროფილი
The article focuses on the application of mathematical methods in economics, in particular discussing economic problems that are easily solved using definite integral.
Maka Lomtadze
doaj   +1 more source

Truncation error estimation for Newton–Cotes quadrature formulas

open access: yesLietuvos Matematikos Rinkinys, 2004
Theoretical and practical aspects of truncation error estimation for Newton–Cotes quadrature formulas are discussed in this paper.
Kostas Plukas, Danutė Plukienė
doaj   +3 more sources

Analysis and evaluation of students' results in the subject of Mathematics for Technicians [PDF]

open access: yesMathematics in Education, Research and Applications, 2020
Integral calculus is a branch of mathematics concerned with the determination, properties, and application of integrals. It is predominantly used in technical applications.
Vladimír Matušek, Eva Matušeková
doaj   +2 more sources

Generalizations and applications of Young’s integral inequality by higher order derivatives

open access: yesJournal of Inequalities and Applications, 2019
In the paper, the authors 1.generalize Young’s integral inequality via Taylor’s theorems in terms of higher order derivatives and their norms, and2.apply newly-established integral inequalities to estimate several concrete definite integrals, including a
Jun-Qing Wang, Bai-Ni Guo, Feng Qi
doaj   +1 more source

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