Results 11 to 20 of about 30,452 (249)

Numerical solution to Volterra integro-differential equations using collocation approximation [PDF]

open access: yesMathematics and Computational Sciences, 2023
This paper considers the collocation method for the numerical solution of the Volterra integro- differential equation using polynomial basis functions.
Ganiyu Ajileye, Sikiru Amoo
doaj   +1 more source

Development of technique of Backward integration step-by-step for solve stiff initial value problems

open access: yesTikrit Journal of Pure Science, 2023
Our purpose in this paper is the development of the  technique of backward integration step-by-step, In order to facilitating the use of this technique for  solving  the Stiff Problems.
Khalid A. M. Khalaf, Bashir M. S. Khalaf
doaj   +1 more source

Flat structure and potential vector fields related with algebraic solutions to Painlevé VI equation [PDF]

open access: yesOpuscula Mathematica, 2018
A potential vector field is a solution of an extended WDVV equation which is a generalization of a WDVV equation. It is expected that potential vector fields corresponding to algebraic solutions of Painlevé VI equation can be written by using ...
Mitsuo Kato   +2 more
doaj   +1 more source

A Numerical Method using Collocation Approach for the Solution of Volterra-Fredholm Integro-Differential Equations

open access: yesAfrican Scientific Reports, 2022
This paper consider collocation approach for the numerical solution of Volterra-Fredholm Integro-differential equation using collocation method. We transformed the problem into a system of linear algebraic equations and matrix inversion is adopted to ...
G. Ajileye, F. A. Aminu
doaj   +1 more source

Maximal imaginery eigenvalues in optimal systems [PDF]

open access: yesModeling, Identification and Control, 1991
In this note we present equations that uniquely determine the maximum possible imaginary value of the closed loop eigenvalues in an LQ-optimal system, irrespective of how the state weight matrix is chosen, provided a real symmetric solution of the ...
David Di Ruscio
doaj   +1 more source

Algebraic Persistent Fault Analysis of SKINNY_64 Based on S_Box Decomposition

open access: yesEntropy, 2022
Algebraic persistent fault analysis (APFA), which combines algebraic analysis with persistent fault attacks, brings new challenges to the security of lightweight block ciphers and has received widespread attention since its introduction.
Xing Fang   +5 more
doaj   +1 more source

Linearisation of a second-order nonlinear ordinary differential equation

open access: yesActa Polytechnica, 2023
We analyse nonlinear second-order differential equations in terms of algebraic properties by reducing a nonlinear partial differential equation to a nonlinear second-order ordinary differential equation via the point symmetry f(v)∂v.
Adhir Maharaj   +3 more
doaj   +1 more source

Preservice Middle School Mathematics Teachers’ Definitions of Algebraic Expression and Equation

open access: yesInternational Journal of Contemporary Educational Research, 2022
Using correct definitions of the mathematical concepts is crucial for learning and teaching of any mathematical content. Being able to make mathematically correct definition of the concepts is an indicator of teachers’ content knowledge.
Pınar Yıldız   +2 more
doaj   +1 more source

Parametric Expansions of an Algebraic Variety near Its Singularities

open access: yesAxioms, 2023
Presently, there is a method based on Power Geometry that allows one to find asymptotic forms and asymptotic expansions of solutions to different kinds of non-linear equations near their singularities.
Alexander D. Bruno, Alijon A. Azimov
doaj   +1 more source

A Story of Computational Science: Colonel Titus’ Problem from the 17th Century

open access: yesAxioms, 2022
Experimentation and the evaluation of algorithms have a long history in algebra. In this paper we follow a single test example over more than 250 years.
Trond Steihaug
doaj   +1 more source

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