Alex H. Barnett is an applied mathematician and numerical analyst. He is a full professor in the mathematics department at Dartmouth College. Barnett obtained his PhD in physics at Harvard University, followed by a postdoctoral fellowship in radiology at Massachusetts General Hospital and a Courant Instructorship at New York University. His research interests include scientific computing, partial differential equations, integral equations, biomedical imaging, neuroscience, inverse problems and quantum chaos. Barnett is well known for numerical work in wave scattering, high-frequency eigenvalues, potential theory, periodic geometries and fast algorithms.