Results 261 to 270 of about 4,477,780 (283)

On Conservative Finite-Difference Schemes for the One-Dimensional MHD Equations in Cylindrical Geometry Possessing Additional Conservation Laws

Proceedings of the International Conference Modern Achievements in Symmetries of Differential Equations (Symmetry 2022), 2022
Based on recent results in the construction of conservative finite-difference schemes, a new scheme for one-dimensional isentropic flows of polytropic gas in cylindrical geometry in the presence of a radial magnetic field is presented. The proposed scheme adds to the list of recently constructed schemes, and completes the consideration of conservative ...
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An estimate of the “shade” of additional boundary conditions for systems of difference equations with oblique characteristics of constant sign

USSR Computational Mathematics and Mathematical Physics, 1989
Estimates are established for the width of the “e-shadow”—the region outside which the solution of given difference boundary-value problem differs from the solution of the corresponding left-hand difference boundary-value problem by a quantity O(h q+e ) where q is the order of approximation of the left-hand difference boundary-value problem.
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[Additive aboveground biomass equations based on different predictors for natural Tilia Linn].

Ying yong sheng tai xue bao = The journal of applied ecology, 2019
Biomass is a basic quantitative character of forest ecosystem. Biomass data are foundation of researching many forestry and ecology problems. Accurate quantification of tree biomass is critical and essential for calculating carbon storage, as well as for studying climate change, forest health, forest productivity, nutrient cycling, etc.
Jia Hui, Wang, Feng Ri, Li, Li Hu, Dong
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Stochastic Formulation of the General Differential Difference Equation for Addition-Growth Kinetic Processes—Example of Anionic Polymerization

Journal of Macromolecular Science: Part A - Chemistry, 1969
Abstract In an effort to lend some insight into the probabilistic nature of step-growth kinetic processes, the differential rate expression for anionic polymerization with one rate constant is derived from stochastic theory.
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Addition to the article: On the identification of difference equations by observations of solutions with perturbations from a given linear manifold

Matematicheskie Trudy
This communication provides some corrections to the results previously obtained by the author in an article published by him in the journal "Mathematical Works", Volume 27, No. 2. At the same time, the main theorems of the article (5 and 6), as well as Theorem 1 together with the proofs, remain unchanged.
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Additive operator splitting methods for solving systems of nonlinear finite difference equations

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.
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Stabilization of cycles for difference equations with a noisy PF control

Automatica, 2020
Josef Diblík, Alexandra Rodkina, Elena Braverman   +2 more
exaly  

Fast-Diffusion Limit for Reaction–Diffusion Equations with Degenerate Multiplicative and Additive Noise

Journal of Dynamics and Differential Equations, 2020
Wael Wagih Mohammed
exaly  

Numerical Approximation of Some Linear Stochastic Partial Differential Equations Driven by Special Additive Noises

SIAM Journal on Numerical Analysis, 2002
Qiang Du
exaly  

Additive difference scheme for a non-stationary fourth-order equation in an arbitrary domain

USSR Computational Mathematics and Mathematical Physics, 1977
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