Results 11 to 20 of about 4,701,672 (287)

Additive operator splitting methods for solving systems of nonlinear finite difference equations

open access: yes, 2005
There exists a considerably body of literature on the development, analysis and implementation of multiplicative and additive operator splitting methods for solving large and sparse systems of finite difference equations arising from the discretization of partial differential equations.
GALLIGANI, Emanuele
openaire   +3 more sources

Higher-order finite-difference methods for partial differential equations [PDF]

open access: yes, 1997
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This thesis develops two families of numerical methods, based upon rational approximations having distinct real poles, for solving first- and second-order ...
Cheema, Tasleem Akhter
core   +6 more sources

Simultaneous Additive Equations: Repeated and Differing Degrees [PDF]

open access: yesCanadian Journal of Mathematics, 2017
Abstract We obtain bounds for the number of variables required to establish Hasse principles, both for the existence of solutions and for asymptotic formulæ, for systems of additive equations containing forms of differing degree but also multiple forms of like degree.
Brandes, Julia, Parsell, Scott T.
openaire   +2 more sources

Lagrangians and integrability for additive fourth-order difference equations [PDF]

open access: yesThe European Physical Journal Plus, 2020
We use a recently found method to characterise all the invertible fourth-order difference equations linear in the extremal values based on the existence of a discrete Lagrangian. We also give some result on the integrability properties of the obtained family and we put it in relation with known classifications.
openaire   +3 more sources

Exponential dichotomy for noninvertible linear difference equations [PDF]

open access: yes, 2021
In this article we study exponential dichotomies for noninvertible linear difference equations in finite dimensions. After giving the definition, we study the extent to which the projection P(k) in a dichotomy is unique.
Battelli, F.   +5 more
core   +1 more source

Intuitionistic fuzzy stability results of additive functional equation by two different approaches

open access: yesJournal of Physics: Conference Series, 2021
Abstract In this current work, we examine the Hyers-Ulam(H-U) stability results for a finite variable additive functional equation (Ref.[6]) in Intuitionistic Fuzzy Normed space(IFN-space) is discussed by means of direct and fixed point methods.
K Tamilvanan   +4 more
openaire   +1 more source

Characteristics of Conservation Laws for Difference Equations [PDF]

open access: yes, 2013
Each conservation law of a given partial differential equation is determined (up to equivalence) by a function known as the characteristic. This function is used to find conservation laws, to prove equivalence between conservation laws, and to prove the ...
Hydon, PE   +3 more
core   +1 more source

Dynamics and Solutions of Higher-Order Difference Equations

open access: yes, 2023
The invariance method, known as Lie analysis, consists of finding a group of transformations that leave a difference equation invariant. This powerful tool permits one to lower the order, linearize and more importantly, obtain analytical solutions of ...
Mensah Folly-Gbetoula
core   +1 more source

Heterogeneous genetic (co)variances in simulated closed herds under selection - 10.4025/actascianimsci.v34i1.10934

open access: yesActa Scientiarum: Animal Sciences, 2011
Assuming that selection in closed herds can promote reduction in additive genetic variance, multiple regression models were used to estimate this change in additive genetic (co)variance component, over the years when the selection was done.
Daniela Andressa Lino-Lourenço   +5 more
doaj   +1 more source

Sensory sweetness and sourness interactive response of sucrose-citric acid mixture based on synergy and antagonism

open access: yesnpj Science of Food, 2022
The clarity of taste sensation interaction is a key basis for promoting the food sensory science research and its application to the beverage and food additive industries.
Yuezhong Mao   +3 more
doaj   +1 more source

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