Results 101 to 110 of about 55,209 (306)
Numerical analysis of a semi-implicit DDFV scheme for the regularized curvature driven level set equation in 2D [PDF]
, 2006 summary:Stability and convergence of the linear semi-implicit discrete duality finite volume (DDFV) numerical scheme in 2D for the solution of the regularized curvature driven level set equation is proved. Numerical experiments concerning comparison with
Boyer, Franck +7 more
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Advances in Difference Equations, 2018 In this paper, we investigate a fully implicit finite difference scheme for solving the time fractional advection–diffusion equation. The time fractional derivative is estimated using Caputo’s formulation, and the spatial derivatives are discretized ...
Syed Tauseef Mohyud-Din +4 more
doaj +1 more source
Advanced Materials, EarlyView.We introduce a computational workflow that combines quantum chemical calculations and machine learning techniques to predict the catalytic performance of a wide range of catalysts in the nitrogen reduction reaction (NRR). The analysis of the trained models provides insights into the complex structure–activity relationship in experimental catalytic ...
Leonardo Di Ciano +5 more
wiley +1 more source
Linearly implicit methods for the nonlinear Klein–Gordon equation
We present energy-preserving linearly implicit integrators for the nonlinear Klein–Gordon equation, based on the polarization of the polynomial functions. They are symmetric, second-order accurate in time and space, and unconditionally stable. Instead of
Uzunca, Murat, Karasözen, Bülent
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A differential equation approach to implicit sweeping processes
, 2019 International audienceIn this paper, we study an implicit version of the sweeping process. Based on methods of convex analysis, we prove the equivalence of the implicit sweeping process with a differential equation, which enables us to show the existence
Vilches, Emilio, Jourani, Abderrahim
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Dupin Cyclides as a Subspace of Darboux Cyclides
MathematicsDupin cyclides are interesting algebraic surfaces used in geometric design and architecture to join canal surfaces smoothly and to construct model surfaces.
Jean Michel Menjanahary +1 more
doaj +1 more source
A Strongly A-Stable Time Integration Method for Solving the Nonlinear Reaction-Diffusion Equation
Abstract and Applied Analysis, 2015 The semidiscrete ordinary differential equation (ODE) system resulting from compact higher-order finite difference spatial discretization of a nonlinear parabolic partial differential equation, for instance, the reaction-diffusion equation, is highly ...
Wenyuan Liao
doaj +1 more source
Implicitization of differential rational parametric equations
Journal of Symbolic Computation, 2003 The problem of implicitization for algebraic varieties takes care of finding algorithms to get the ideal of an unirational algebraic variety from a system of parametric equations. This classical problem has been much studied in recent years with the method of Gröbner bases. Here the analogous problem is studied for differential varieties.
openaire +2 more sources
An Implicit Equation Given Certain Parametric Equations
Missouri Journal of Mathematical Sciences, 2006 This paper concerns finding the implicit equation of a given monomial parametrization of projective surfaces. The discussion is concentrated on the irreducibility of the equation.
Bruening, James, Wang, Hao Hao
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Soft Hardware, Flowing Software: Reconfigurable Microfluidics for Adaptable Chemical Computation
Advanced Materials, EarlyView.A reconfigurable microfluidic platform based on soft, photo‐printable, and chemically erasable hydrogel structures printed and erased in situ is used to control flow routing, mixing, chemical patterning, and even chemical computing. Using hardware to control chemical computations decouples logic function from molecular composition, demonstrated via ...
Piet J. M. Swinkels +4 more
wiley +1 more source