Results 21 to 30 of about 33,202 (148)

A De Giorgi Iteration-based Approach for the Establishment of ISS Properties for Burgers' Equation with Boundary and In-domain Disturbances [PDF]

open access: yes, 2018
This note addresses input-to-state stability (ISS) properties with respect to (w.r.t.) boundary and in-domain disturbances for Burgers' equation. The developed approach is a combination of the method of De~Giorgi iteration and the technique of Lyapunov ...
Zheng, Jun, Zhu, Guchuan
core   +2 more sources

On numerical simulation of liquid polymer moulding

open access: yesMathematical Modelling and Analysis, 2003
In this paper we consider numerical algorithms for solving the system of nonlinear PDEs, arising in modeling of liquid polymer injection. We investigate the particular case when a porous preform is located within the mould, so that the liquid polymer is ...
R. Čiegis, O. Iliev
doaj   +1 more source

Moving-boundary problems solved by adaptive radial basis functions [PDF]

open access: yes, 2010
The objective of this paper is to present an alternative approach to the conventional level set methods for solving two-dimensional moving-boundary problems known as the passive transport. Moving boundaries are associated with time-dependent problems and
Atluri   +42 more
core   +2 more sources

Treatment of complex interfaces for Maxwell's equations with continuous coefficients using the correction function method

open access: yes, 2020
We propose a high-order FDTD scheme based on the correction function method (CFM) to treat interfaces with complex geometry without increasing the complexity of the numerical approach for constant coefficients.
Law, Yann-Meing   +2 more
core   +1 more source

PDEs with Compressed Solutions [PDF]

open access: yes, 2014
Sparsity plays a central role in recent developments in signal processing, linear algebra, statistics, optimization, and other fields. In these developments, sparsity is promoted through the addition of an $L^1$ norm (or related quantity) as a constraint
Caflisch, Russel E.   +3 more
core   +3 more sources

Linear Hamilton Jacobi Bellman Equations in High Dimensions [PDF]

open access: yes, 2014
The Hamilton Jacobi Bellman Equation (HJB) provides the globally optimal solution to large classes of control problems. Unfortunately, this generality comes at a price, the calculation of such solutions is typically intractible for systems with more than
Burdick, Joel W.   +2 more
core   +2 more sources

Symmetric boundary knot method

open access: yes, 2002
The boundary knot method (BKM) is a recent boundary-type radial basis function (RBF) collocation scheme for general PDEs. Like the method of fundamental solution (MFS), the RBF is employed to approximate the inhomogeneous terms via the dual reciprocity ...
Chen, W.
core   +2 more sources

NDAWL-PINN: a new non-dimensionalization and multi-task learning approach for efficient training of physics-informed neural networks to solve the shallow water equations

open access: yesEngineering Applications of Computational Fluid Mechanics
The exploration of deep learning methodologies has recently generated significant interest in the use of Physics-Informed Neural Networks (PINNs) to address complex physical problems governed by partial differential equations (PDEs).
Xin Qi   +4 more
doaj   +1 more source

Computing Solution Operators of Boundary-value Problems for Some Linear Hyperbolic Systems of PDEs

open access: yes, 2017
We discuss possibilities of application of Numerical Analysis methods to proving computability, in the sense of the TTE approach, of solution operators of boundary-value problems for systems of PDEs.
Selivanov, Victor, Selivanova, Svetlana
core   +1 more source

The use of the mesh free methods (radial basis functions) in the modeling of radionuclide migration and moving boundary value problems [PDF]

open access: yes, 2007
Recently, the mesh free methods (radial basis functions-RBFs) have emerged as a novel computing method in the scientific and engineering computing community.
Runovc, Franc   +2 more
core  

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