russell j. hewett

assistant professor

mathematics & CMDA

Joining My Research Group

Pay attention to this space for research opportunities. I will post them here as they arise.

Postdocs: I have no current openings. Occasional funding for teaching postdocs may be available through the department. Contact me if interested.

Grad students: Current VT MS and PhD students who are interested in working with me should contact me by e-mail to setup a meeting with me. Prospective graduate students should also contact me to alert me to their application to VT.

Undergrads: I occasionally have space for undergrad researchers. I encourage CMDA students who want to do research with me to do well in CMDA 3634, with me (prefered) or with another instructor.

research projects

Pysit

PySIT: Python Seismic Imaging Toolbox

Solar Tomography

3D reconstructions of the solar atmosphere

SunPy

SunPy: Solar Data Analysis in Python

Sweeping Preconditioners

3D, high-frequency Helmholtz

recent publications

We present a faster solver for the 3D Helmholtz equation at high frequencies, including derivations of the preconditioner, and analysis …

The recently developed Hierarchical Poincaré-Steklov (HPS) method is a high-order discretization technique that comes with a direct …

Traditional time-domain discontinuous Galerkin (DG) methods result in large storage costs at high orders of approximation due to the …

Time-domain discontinuous Galerkin (DG) methods for wave propagation require accounting for the inversion of dense elemental mass …

In this work we propose a hybridizable discontinuous Galerkin (hdG) discretization of the high-frequency Helmholtz equation in the …

recent & upcoming talks