Results 31 to 40 of about 2,059 (204)

Numerical-symbolic methods for searching relative equilibria in the restricted problem of four bodies

open access: yesMathematical Modelling and Analysis, 2018
We discuss here the problem of solving the system of two nonlinear algebraic equations determining the relative equilibrium positions in the planar circular restricted four-body problem formulated on the basis of the Euler collinear solution of the three-
Alexander N. Prokopenya
doaj   +1 more source

Couple of the Variational Iteration Method and Legendre Wavelets for Nonlinear Partial Differential Equations

open access: yesJournal of Applied Mathematics, 2013
This paper develops a modified variational iteration method coupled with the Legendre wavelets, which can be used for the efficient numerical solution of nonlinear partial differential equations (PDEs). The approximate solutions of PDEs are calculated in
Fukang Yin   +3 more
doaj   +1 more source

Symbolic computation and signal processing [PDF]

open access: yes, 2004
Many problems in digital signal processing can be converted to algebraic problems over polynomial and Laurent polynomial rings, and can be solved using the existing methods of algebraic and symbolic computation.
Park, Hyungju
core   +1 more source

A New Neural Network Framework Integrating Symbolic Computation to Solve the (2+1)-Dimensional Boussinesq Equation

open access: yesMathematics
The (2+1)-dimensional Boussinesq equation is a fundamental model in nonlinear wave theory, governing shallow-water wave propagation, coastal dynamics in ocean engineering, and long waves in geophysical fluid systems such as atmospheric and oceanic ...
Jing-Bin Liang   +3 more
doaj   +1 more source

A Hyper-Dual Number Approach to Higher-Order Derivative Computation

open access: yesAxioms
This paper develops a theoretical framework for the computation of higher-order derivatives based on the algebra of hyper-dual numbers. Extending the classical dual number system, hyper-dual numbers provide a natural and rigorous mechanism for encoding ...
Ji Eun Kim
doaj   +1 more source

New Exact Jacobi Elliptic Function Solutions for the Coupled Schrödinger-Boussinesq Equations

open access: yesJournal of Applied Mathematics, 2013
A general algebraic method based on the generalized Jacobi elliptic functions expansion method, the improved general mapping deformation method, and the extended auxiliary function method with computerized symbolic computation is proposed to construct ...
Baojian Hong, Dianchen Lu
doaj   +1 more source

NCSOStools: a computer algebra system for symbolic and numerical computation with noncommutative polynomials [PDF]

open access: yesOptimization Methods and Software, 2011
NCSOStools is a Matlab toolbox for • symbolic computation with polynomials in noncommuting NC variables; • constructing and solving sum of Hermitian squares with commutators programs for polynomials in NC variables. It can be used in combination with semidefinite programming software, such as SeDuMi, SDPA or SDPT3, to solve these ...
Kristijan Cafuta, Igor Klep, Janez Povh
openaire   +1 more source

Object oriented institutions to specify symbolic computation systems [PDF]

open access: yes, 2007
The specification of the data structures used in EAT, a software system for symbolic computation in algebraic topology, is based on an operation that defines a link among different specification frameworks like hidden algebras and coalgebras.
Julio Rubio   +8 more
core   +1 more source

Advances in the Design of Symbolic Computation Systems [PDF]

open access: yes, 1997
New methodological aspects related to design and implementation of symbolic computation systems are considered in this volume aiming at integrating such aspects into a homogeneous software environment for scientific computation.
TEMPERINI, Marco, Alfonso Miola
core  

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