Results 11 to 20 of about 4,477,780 (283)
Higher-order finite-difference methods for partial differential equations [PDF]
, 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
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Backward difference replacements of the space derivative in first order hyperbolic equations [PDF]
, 1983 Two families of two-time level difference schemes are developed for the numerical solution of first order hyperbolic partial differential equations with one space variable.
Khaliq, AQM, Twizell, EH
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Lagrangians and integrability for additive fourth-order difference equations [PDF]
The 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.
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Stability of Equilibrium Points of Fractional Difference Equations with Stochastic Perturbations
Advances in Difference Equations, 2008 It is supposed that the fractional difference equation xn+1=(μ+∑j=0kajxn−j)/(λ+∑j=0kbjxn−j), n=0,1,…, has an equilibrium point x^ and is exposed to additive stochastic perturbations type of Ã(xn−x^)ξn+1 that are ...
Beatrice Paternoster, Leonid Shaikhet
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BMC Pulmonary Medicine, 2021 Background Spirometric reference values are well known in several ethnic groups but the normative spirometric values of blacks living in Africa have been less studied.
Eric Walter Pefura-Yone +9 more
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Intuitionistic fuzzy stability results of additive functional equation by two different approaches
Journal 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
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Dynamics and Solutions of Higher-Order Difference Equations
, 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
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Characteristics of Conservation Laws for Difference Equations [PDF]
, 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
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Scientific Reports, 2023 An efficient thermal-structural numerical solver for Additive Manufacturing has been developed based on a modified Lagrangian approach to solve the energy conservation equations in differential form.
Ilya Tsivilskiy, Igor Shishkovsky
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Acta 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
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