Conjugate Gradient-Type Methods for Linear Systems with Complex Symmetric Coefficient Matrices

a new type-ii fuzzy logic based controller for non-linear dynamical systems with application to 3-psp parallel robot

abstract type-ii fuzzy logic has shown its superiority over traditional fuzzy logic when dealing with uncertainty. type-ii fuzzy logic controllers are however newer and more promising approaches that have been recently applied to various fields due to their significant contribution especially when the noise (as an important instance of uncertainty) emerges. during the design of type- i fuz...

CG Type Algorithm for Indefinite Linear Systems 1 Conjugate Gradient Type Methods for Solving Symmetric , Inde nite

The conjugate gradient algorithm (CG) is an eeective tool for solving a system of linear equation with a positive deenite coeecient matrix. We show the reasons for a possible breakdown of the method when applied to a symmetric system with an indeenite coeecient matrix. Although in nite arithmetic a breakdown of the method occurs rather seldom, near breakdowns may slow down the speed of converge...

On Conjugate Gradient Type Methods and Polynomial Preconditioners for a Class of Complex Non-Hermitian Matrices

Multigrid-Conjugate Gradient Type Methods for Reaction-diffusion Systems

We study multigrid methods in the context of continuation methods for reaction–diffusion systems, where the Bi-CGSTAB and GMRES methods are used as the relaxation scheme for the V-cycle, W-cycle and full approximation schemes, respectively. In particular, we apply the results of Brown and Walker [1997] to investigate how the GMRES method can be used to solve nearly singular systems that occur i...

Conjugate Gradient Methods for Toeplitz Systems

A list of technical reports, including some abstracts and copies of some full reports may be found at: Object test coverage using finite state machines. September 1995. On balancing workload in a highly mobile environment. August 1995. Error analysis of a partial pivoting method for structured matrices. June 1995. Abstract In this expository paper, we survey some of the latest developments on u...