Results 41 to 50 of about 8,614,380 (320)

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

Optimising a nonlinear utility function in multi-objective integer programming [PDF]

open access: yes, 2012
In this paper we develop an algorithm to optimise a nonlinear utility function of multiple objectives over the integer efficient set. Our approach is based on identifying and updating bounds on the individual objectives as well as the optimal utility ...
A. Przybylski   +22 more
core   +2 more sources

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

Asymptotic estimates for the number of integer solutions to decomposable form inequalities [PDF]

open access: yesCompositio Mathematica, 2003
For homogeneous decomposable forms F(X) in n variables with integer coefficients, we consider the number of integer solutions ${\bf x}\in\mathbb{Z}^n$ to the inequality $|F({\bf x})|\le m$ as $m\rightarrow\infty$.
J. L. Thunder
semanticscholar   +1 more source

Algorithms for Highly Symmetric Linear and Integer Programs [PDF]

open access: yes, 2011
This paper deals with exploiting symmetry for solving linear and integer programming problems. Basic properties of linear representations of finite groups can be used to reduce symmetric linear programming to solving linear programs of lower dimension ...
E.J. Friedman   +12 more
core   +3 more sources

Exact solution of the two-axis countertwisting Hamiltonian for the half-integer $J$ case

open access: yes, 2016
Bethe ansatz solutions of the two-axis countertwisting Hamiltonian for any (integer and half-integer) $J$ are derived based on the Jordan-Schwinger (differential) boson realization of the $SU(2)$ algebra after desired Euler rotations, where $J$ is the ...
Draayer, Jerry P.   +2 more
core   +1 more source

Polynomial solutions of the Knizhnik-Zamolodchikov equations and Schur-Weyl duality [PDF]

open access: yes, 2006
An integral formula for the solutions of Knizhnik-Zamolodchikov (KZ) equation with values in an arbitrary irreducible representation of the symmetric group S_N is presented for integer values of the parameter.
Felder, Giovanni, Veselov, Alexander P.
core   +2 more sources

The integer solutions of the cubic Diophantine equation x3±33=pqy2

open access: yesXi'an Gongcheng Daxue xuebao, 2021
The solvability of a class of cubic Diophantine equations is studied by using properties of congruence, Legendre symbol and the methods of elementary number theory.
Heng LI, Hai YANG, Yongliang LUO
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

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

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