Numerical Problems in Advanced Physical Chemistry (Wolfenden, J. H.)

Heterozygote Hemoglobin J Iran in Combination with Hemoglobin H Disease

This is a report concerning a concurrent case of hemoglobin J Iran (Hb J Iran) and Hemoglobin H (Hb H) disease in an Iranian woman. The patient was coincidentally found during the course of routine pre-marital genetic counselling for her son. The diagnosis of heterozygote Hb J Iran for her son, ultimately led to the diagnosis of concurrent Hb J Iran and Hb H disease. The hematological examinati...

Numerical Homogenization for Indefinite H(curl)-problems

In this paper, we present a numerical homogenization scheme for indefinite, timeharmonic Maxwell’s equations involving potentially rough (rapidly oscillating) coefficients. The method involves an H(curl)-stable, quasi-local operator, which allows for a correction of coarse finite element functions such that order optimal (w.r.t. the mesh size) error estimates are obtained. To that end, we exten...

The Wolfenden Report

Physical Chemistry

The approaches range from theoretical studies – including statistical physics of non-equilibrium systems – to the organic synthesis of molecules and macromolecules, and they include many experimental studies on biological and biomimetic systems in which the parameters can be changed. A variety of microscopical techniques are used such as optical, multiphoton, electron and atomic force microscop...

Numerical Methods for Linear Quadratic and H∞ Control Problems

We discuss the numerical solution of linear quadratic optimal control problems and H∞ control problems. A standard approach for these problems leads to solving algebraic Riccati equations or to the computation of deflating subspaces of structured matrix pencils. New structure preserving methods for these problems have been developed recently. These are faster than the conventional used methods ...