Wednesday, 16 November 2016, 14:00 at MR9 Centre for Mathematical Sciences – I will discuss inversion formulas (up to a compact error) for the attenuated X-ray transform on a non-trapping surface, when the attenuation is determined by a complex matrix of 1-forms (a GL(n,C)-connection). The formulas lead naturally to a filtered-backprojection algorithm and if time allows, I’ll discuss some numerical simulations. This …