Hello!

I'm Jethro Linley, thanks for visiting my website. I recently finished a PhD at Glasgow University where I performed research on gravitational wave physics and waveform modelling, as well as signal processing and analysis. This involved modelling (using both General Relativity and parameterised alternative gravity theories), information geometry, data analysis, and lots of (mostly Python) coding.

My thesis is available here.

I have a GitHub and wrote the pip installable package dolfen to relatively quickly and accurately estimate the Bayesian likelihood function of compact binary coalescences as observed by LISA; data required for my PhD.

This website hosts a bit of non-PhD work on Gravity, Cosmology, Black Holes, Geometry and Variational Calculus, which you can find at the following links. It might grow over time. Clearly I've put little effort into the appearance of this website, but it does its job!

• Variational Principles & Cosmology on Manifolds with Boundary
  (13, Dec, 2020)Download PDF

  Treating the Einstein-Hilbert action correctly as a function of points on a manifold, rather than a function of coordinates (as laid out in Extremised Action Functionals On Manifolds), using a manifold with boundary yields field equations different to the Einstein Equations. These are derived and applied to cosmologies.

• Extremised Action Functionals On Manifolds
  (21, Dec, 2020)Download PDF

  This paper describes the necessarily distinct approach to obtaining equations of motion from varying actions defined as integrals of functions rather than integrals of differential k-forms on manifolds.

Contact contact@jethrolinley.co.uk