Least-squares spectral element method for non-linear hyperbolic differential equations

A Least Squares Spectral Element Method for Incompressible Flow Simulations

Least-squares hp/spectral element method for elliptic problems

The solution of elliptic boundary value problems often leads to singularities due to nonsmoothness of the domains on which the problem is posed. This paper studies the performance of the nonconforming hp/spectral element method for elliptic problems on non smooth domains. This paper deals with monotone singularities of type rα and rα log r as well as the oscillating singularities of type rα sin...

Least-squares Spectral Element Methods

In setting up this workshop we had to decide whether we wanted to let you become familiar with the method in a complex setting – non-linear, time-dependent calculations – or restrict ourselves to simpler problems, which allows you to get a better understanding of the method. We have chosen for the second line for several reasons: 1) The method is quite new, so it is hard to find references whic...

Least-squares collocation for linear higher-index differential-algebraic equations

Differential-algebraic equations with higher index give rise to essentially ill-posed problems. Therefore, their numerical approximation requires special care. In the present paper, we state the notion of ill-posedness for linear differential-algebraic equations more precisely. Based on this property, we construct a regularization procedure using a least-squares collocation approach by discreti...

Least Squares Solutions of Inconsistent Fuzzy Linear Matrix Equations