Results 11 to 20 of about 99,563 (294)

Galerkin methods in time for semi‐discrete viscoelastodynamics [PDF]

open access: yesPAMM, 2005
AbstractIn semi‐discrete nonlinear elastodynamics, higher order energy and momentum conserving time stepping schemes turned out to be well suited for computing long time motions [1]. In comparison to standard ODE integrators, conserving schemes exhibit superior stability properties which are of utmost importance in a nonlinear .nite element framework ...
Michael Groß, Peter Betsch
openaire   +1 more source

Dynamics of a Discrete Leslie–Gower Model with Harvesting and Holling-II Functional Response

open access: yesMathematics, 2023
Recently, Christian Cortés García proposed and studied a continuous modified Leslie–Gower model with harvesting and alternative food for predator and Holling-II functional response, and proved that the model undergoes transcritical bifurcation, saddle ...
Chen Zhang, Xianyi Li
doaj   +1 more source

Flip bifurcation and Neimark-Sacker bifurcation in a discrete predator-prey model with Michaelis-Menten functional response

open access: yesElectronic Research Archive, 2023
In this paper, we use a semi-discretization method to explore a predator-prey model with Michaelis-Menten functional response. Firstly, we investigate the local stability of fixed points. Then, by using the center manifold theorem and bifurcation theory,
Xianyi Li , Xingming Shao
doaj   +1 more source

Removing the Stiffness of Elastic Force from the Immersed Boundary Method for the 2D Stokes Equations [PDF]

open access: yes, 2008
The Immersed Boundary method has evolved into one of the most useful computational methods in studying fluid structure interaction. On the other hand, the Immersed Boundary method is also known to suffer from a severe timestep stability restriction when ...
Hou, Thomas Y., Shi, Zuoqiang
core   +4 more sources

Semi-discrete and fully discrete HDG methods for Burgers' equation

open access: yesCommunications on Pure and Applied Analysis, 2023
This paper proposes semi-discrete and fully discrete hybridizable discontinuous Galerkin (HDG) methods for the Burgers' equation in two and three dimensions. In the spatial discretization, we use piecewise polynomials of degrees $ k \ (k \geq 1), k-1$ and $ l \ (l=k-1; k) $ to approximate the scalar function, flux variable and the interface trace of ...
Zhu, Zimo, Chen, Gang, Xie, Xiaoping
openaire   +3 more sources

A semi-discrete line-free method of monopoles for dislocation dynamics [PDF]

open access: yesExtreme Mechanics Letters, 2021
Deutsche Forschungsgemeinschaft 11504053 - SFB ...
M.P. Ariza, M. Ortiz
openaire   +4 more sources

Generalized semi-infinite programming: Numerical aspects [PDF]

open access: yes, 1998
Generalized semi-infinite optimization problems (GSIP) are considered. It is investigated how the numerical methods for standard semi-infinite programming (SIP) can be extended to GSIP. Newton methods can be extended immediately.
Still, G.J.
core   +13 more sources

A Space-Time Fully Decoupled Wavelet Integral Collocation Method with High-Order Accuracy for a Class of Nonlinear Wave Equations

open access: yesMathematics, 2021
A space-time fully decoupled wavelet integral collocation method (WICM) with high-order accuracy is proposed for the solution of a class of nonlinear wave equations.
Jiong Weng   +3 more
doaj   +1 more source

Flux form Semi-Lagrangian methods for parabolic problems [PDF]

open access: yes, 2015
A semi-Lagrangian method for parabolic problems is proposed, that extends previous work by the authors to achieve a fully conservative, flux-form discretization of linear and nonlinear diffusion equations. A basic consistency and convergence analysis are
Bonaventura, Luca, Ferretti, Roberto
core   +3 more sources

A Non-parametric Semi-supervised Discretization Method [PDF]

open access: yes, 2008
Semi-supervised classification methods aim to exploit labelled and unlabelled examples to train a predictive model. Most of these approaches make assumptions on the distribution of classes. This article first proposes a new semi-supervised discretization
A. Bondu   +4 more
core   +4 more sources

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