1. (with Hans Lindblad) Scattering from infinity for semi linear wave equations satisfying the null condition or the weak null condition, to appear in Journal of Hyperbolic Differential Equations (2023).

    Banff International Research Station

  2. Decay of the Weyl curvature in expanding black hole cosmologies, Annals of PDE (2022).

    Springer   SharedIt Enhanced PDF   1610.04172
    YouTube, PRCM, UC Berkeley

  3. Optical functions in de Sitter, Journal of Mathematical Physics, 62 (8), 082501 (2021)

    AIP   1910.05799

  4. (with Grigorios Fournodavlos) On `hard stars’ in general relativity, Annales Henri Poincaré, 20(7), 2135-2172 (2019)

    Springer   1710.00754

  5. (with Spyros Alexakis) Non-existence of time-periodic vacuum space-times, J. Differential Geom. Volume 108, Number 1 (2018), 1-62.

    Project Euclid   1504.04592
    Simons Center for Geometry and Physics
    Oberwolfach Report, 3 pages.

  6. (with with Spyros Alexakis and Arick Shao) Unique continuation from infinity for linear waves, Advances in Mathematics 286 (2016) 481-544.

    Elsevier   1312.1989
    Banff International Research Station (by Spyros Alexis)

  7. Global results for linear waves on expanding Kerr and Schwarzschild de Sitter cosmologies, Communications in Mathematical Physics: Volume 334, Issue 2 (2015), 977–1023.

    Springer   1207.6055v2

  8. Decay of linear waves on higher dimensional Schwarzschild black holes, Analysis & PDE 6-3 (2013), 515–600.

    MSP   PDF


  • Linear waves on higher dimensional Schwarzschild black holes and Schwarzschild de Sitter spacetimes, Ph.D. Thesis, University of Cambridge (2012), 223 pages.


  • The asymptotics of the gravitational field and the memory effect, Dipl.phys. Thesis, ETH Zurich (2008), [expository, after D. Christodoulou, Nonlinear Nature of Gravitation and Gravitational-Wave Experiments, Phys. Rev. Letters (67), no 12, pp. 1486–1489, (1991)], 48 pages.