Results 11 to 20 of about 47,540 (308)

Novel Second-Order Accurate Implicit Numerical Methods for the Riesz Space Distributed-Order Advection-Dispersion Equations [PDF]

open access: yesAdvances in Mathematical Physics, 2015
We derive and analyze second-order accurate implicit numerical methods for the Riesz space distributed-order advection-dispersion equations (RSDO-ADE) in one-dimensional (1D) and two-dimensional (2D) cases, respectively.
X. Wang, F. Liu, X. Chen
doaj   +2 more sources

On implicit systems of differential equations

open access: yesJournal of Differential Equations, 2003
The author studies implicit autonomous systems of ordinary differential equations with polynomial dependency on both the unknown functions and their derivatives. This allows him to make heavy use of methods from commutative algebra and algebraic geometry in his analysis.
Leon Pritchard, F.
openaire   +3 more sources

Solvability of Implicit Difference Equations

open access: yes, 2015
This article concerns sufficient conditions for the solvability of implicit difference equations. These are cast in a very general framework that relies on the α-covering and Lipschitz properties of the implicit recursive map with respect relatively to the first and second arguments.
Arutyunov A., Pereira F., Zhukovskiy S.
core   +5 more sources

Implicit Integral Equations with Discontinuous Nonlinearities [PDF]

open access: yesJournal of Integral Equations and Applications, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Candito P.
openaire   +4 more sources

Semi-Implicit Multistep Extrapolation ODE Solvers

open access: yesMathematics, 2020
Multistep methods for the numerical solution of ordinary differential equations are an important class of applied mathematical techniques. This paper is motivated by recently reported advances in semi-implicit numerical integration methods, multistep and
Denis Butusov   +4 more
doaj   +2 more sources

Adaptive time-stepping for incompressible flow. Part II: Navier-Stokes equations [PDF]

open access: yes, 2010
We outline a new class of robust and efficient methods for solving the Navier–Stokes equations. We describe a general solution strategy that has two basic building blocks: an implicit time integrator using a stabilized trapezoid rule with an explicit ...
D.J. Silvester   +17 more
core   +1 more source

Adaptive local discontinuous Galerkin methods with semi-implicit time discretizations for the Navier-Stokes equations

open access: yesAdvances in Aerodynamics, 2022
In this paper, we present a mesh adaptation algorithm for the unsteady compressible Navier-Stokes equations under the framework of local discontinuous Galerkin methods coupled with implicit-explicit Runge-Kutta or spectral deferred correction time ...
Xiangyi Meng, Yan Xu
doaj   +1 more source

Implicitization of rational parametric equations

open access: yesJournal of Symbolic Computation, 1992
The paper adresses the implicitization problem for rational parametric equations and presents algorithms based on the Gröbner basis method. The authors give methods: to compute a basis of the implicit ideal for a set of rational parametric equations; to reparametrize a set of parametric equations so that the parameters of the new parametric equations ...
Xiao-Shan Gao, Shang-Ching Chou
openaire   +2 more sources

Implicit Equations Involving the p-Laplace Operator [PDF]

open access: yesMediterranean Journal of Mathematics, 2021
AbstractIn this work we study the existence of solutions$$u \in W^{1,p}_0(\Omega )$$u∈W01,p(Ω)to the implicit elliptic problem$$ f(x, u, \nabla u, \Delta _p u)= 0$$f(x,u,∇u,Δpu)=0in$$ \Omega $$Ω, where$$ \Omega $$Ωis a bounded domain in$$ {\mathbb {R}}^N $$RN,$$ N \ge 2 $$N≥2, with smooth boundary$$ \partial \Omega $$∂Ω,$$ 1< p< \infty $$1<p ...
Greta Marino, Andrea Paratore
openaire   +4 more sources

Mittag-Leffler Euler ∇-differences for Caputo fractional-order systems

open access: yesResults in Physics, 2022
Exponential Euler differences have got rapid development recently for integer-order differential equations. But there are few papers focusing on this difference to fractional differential equations.
Tianwei Zhang, Yongkun Li, Jianwen Zhou
doaj   +1 more source

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