Results 21 to 30 of about 3,061,238 (284)

On integer solutions of Parsell–Vinogradov systems [PDF]

open access: yesInventiones mathematicae, 2019
55 ...
Guo, Shaoming, Zhang, Ruixiang
openaire   +3 more sources

Enumerating solution-free sets in the integers [PDF]

open access: yesElectronic Notes in Discrete Mathematics, 2016
Abstract Given a linear equation L , a set A ⊆ [ n ] is L -free if A does not contain any ‘non-trivial’ solutions to L . In this paper we consider the following three general questions: (i) What is the size of the largest L -free subset of [n]? (ii) How many L -free subsets of [n] are there?
Robert Hancock 0002, Andrew Treglown
openaire   +2 more sources

Pathological study on uncertain numbers and proposed solutions for discrete fuzzy fractional order calculus

open access: yesOpen Physics, 2023
A pathological study in the definition of uncertain numbers is carried out, and some solutions are proposed. Fundamental theorems for uncertain discrete fractional and integer order calculus are established.
Shiri Babak   +2 more
doaj   +1 more source

ON THE INFERIOR AND SUPERIOR k-TH POWER PART OF A POSITIVE INTEGER AND DIVISOR FUNCTION [PDF]

open access: yes, 2000
For any positive integer n, let a{n) and b{n) denote the inferior and superior k-th power part of n ...
ZHENG, JIANFENG
core   +1 more source

Generalized Pell Equations for 2 × 2 Matrices

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2017
In this paper we consider the solutions of the generalized matrix Pell equations X2 − dY2 = cI, where X and Y are 2 × 2 matrices over ℤ, d is a non-zero (positive or negative) square-free integer, c is an arbitrary integer and I is the 2 × 2 identity ...
Cohen Boaz
doaj   +1 more source

A Modified Approach of Adomian Decomposition Method to Solve Two-Term Diffusion Wave and Time Fractional Telegraph Equations

open access: yesIEEE Access, 2022
A new technique of the Adomian decomposition method is developed and applied in this research article to solve two-term diffusion wave and fractional telegraph equations with initial-boundary conditions.
Hajira   +6 more
doaj   +1 more source

Application of Laplace–Adomian Decomposition Method for the Analytical Solution of Third-Order Dispersive Fractional Partial Differential Equations

open access: yesEntropy, 2019
In the present article, we related the analytical solution of the fractional-order dispersive partial differential equations, using the Laplace–Adomian decomposition method.
Rasool Shah   +3 more
doaj   +1 more source

Periodic Solutions to a Third-Order Conditional Difference Equation over the Integers

open access: yesDiscrete Dynamics in Nature and Society, 2011
This paper studies a third-order conditional difference equation which is a generalization from the literature. We investigate this equation by transforming it into a first-order system. Finally it is proved that the equation has no period-two (or three)
Li He, Wanping Liu
doaj   +1 more source

A Study of the Soliton Solutions with an Intrinsic Fractional Discrete Nonlinear Electrical Transmission Line

open access: yesFractal and Fractional, 2022
This study aims to identify soliton structures as an inherent fractional discrete nonlinear electrical transmission lattice. Here, the analysis is founded on the idea that the electrical properties of a capacitor typically contain a non-integer-order ...
Hassan Almusawa, Adil Jhangeer
doaj   +1 more source

Transformation of propositional calculus statements into integer and mixed integer programs: An approach towards automatic reformulation [PDF]

open access: yes, 1990
A systematic procedure for transforming a set of logical statements or logical conditions imposed on a model into an Integer Linear Progamming (ILP) formulation Mixed Integer Programming (MIP) formulation is presented. An ILP stated as a system of linear
Hadjiconstantinou, E
core   +4 more sources

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