Lydia Rosina Bieri (born 1972)[1] is a Swiss-American applied mathematician, geometric analyst, mathematical physicist, cosmologist, and historian of science whose research concerns general relativity, gravity waves, and gravitational memory effects.
[5] Her dissertation, An Extension of the Stability Theorem of the Minkowski Space in General Relativity,[6] was supervised by Demetrios Christodoulou,[5] and jointly promoted by Michael Struwe.
[5] With Harry Nussbaumer of ETH Zurich, Bieri is the coauthor of a general-audience book on cosmology and its history, Discovering the Expanding Universe (Cambridge University Press, 2009),[7] She is also the coauthor of a research monograph with Nina Zipser, Extensions of the Stability Theorem of the Minkowski Space in General Relativity (AMS/IP Studies in Advanced Mathematics, American Mathematical Society, 2009).
[8] Bieri won an NSF CAREER Award in 2013 and was named a Simons Fellow in Mathematics in 2018.
[5] She was named a Fellow of the American Physical Society (APS) in 2021, after a nomination from the APS Division of Gravitational Physics, "for fundamental results on the global existence of solutions of the Einstein field equations, and many contributions to the understanding of gravitational wave memory".