Lydia Rosina Bieri (born 1972) is a Swiss-American applied mathematician, geometric analyst,

mathematical physicist Mathematical physics refers to the development of mathematical methods for application to problems in physics. The ''Journal of Mathematical Physics'' defines the field as "the application of mathematics to problems in physics and the developmen ...

, cosmologist, and historian of science whose research concerns

general relativity General relativity, also known as the general theory of relativity and Einstein's theory of gravity, is the geometric theory of gravitation published by Albert Einstein in 1915 and is the current description of gravitation in modern physics ...

gravity wave In fluid dynamics, gravity waves are waves generated in a fluid medium or at the interface between two media when the force of gravity or buoyancy tries to restore equilibrium. An example of such an interface is that between the atmosphere ...

s, and

gravitational memory effect Gravitational memory effects, also known as gravitational-wave memory effects are predicted persistent changes in the relative position of pairs of masses in space due to the passing of a gravitational wave. Detection of gravitational memory effect ...

s. She is a professor of mathematics and director of the Michigan Center for Applied and Interdisciplinary Mathematics at the

University of Michigan , mottoeng = "Arts, Knowledge, Truth" , former_names = Catholepistemiad, or University of Michigania (1817–1821) , budget = $10.3 billion (2021) , endowment = $17 billion (2021)As o ...

Education and career

Bieri is originally from Sempach, in Switzerland. She studied mathematics at

ETH Zurich (colloquially) , former_name = eidgenössische polytechnische Schule , image = ETHZ.JPG , image_size = , established = , type = Public , budget = CHF 1.896 billion (2021) , rector = Günther Dissertori , president = Joël Mesot , ac ...

, earning a diploma (the equivalent of a master's degree) in 2001. She completed a doctorate (Dr. sc.) at ETH Zurich in 2007, with the support of a Swiss National Funds Fellowship. Her dissertation, ''An Extension of the Stability Theorem of the Minkowski Space in General Relativity'', was supervised by Demetrios Christodoulou, and jointly promoted by

Michael Struwe Michael Struwe (born 6 October 1955 in Wuppertal) is a German mathematician who specializes in calculus of variations and nonlinear partial differential equations. He won the 2012 Cantor medal from the Deutsche Mathematiker-Vereinigung for "outs ...

. After postdoctoral research as a Benjamin Peirce Fellow in mathematics at

Harvard University Harvard University is a private Ivy League research university in Cambridge, Massachusetts. Founded in 1636 as Harvard College and named for its first benefactor, the Puritan clergyman John Harvard, it is the oldest institution of higher le ...

from 2007 to 2010, Bieri became an assistant professor of mathematics at the University of Michigan in 2010. She became associate professor in 2015, director of the Michigan Center for Applied and Interdisciplinary Mathematics in 2019, and full professor in 2021.

Books

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), She is also the coauthor of a research

monograph A monograph is a specialist work of writing (in contrast to reference works) or exhibition on a single subject or an aspect of a subject, often by a single author or artist, and usually on a scholarly subject. In library cataloging, ''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).

Recognition

Bieri won a

NSF CAREER Award The National Science Foundation CAREER awards, presented by the National Science Foundation (NSF), are in support of junior faculty who exemplify the role of teacher-scholars through research and education, and the integration of these endeavors i ...

in 2013, and was named a Simons Fellow in Mathematics in 2018. She was named a

Fellow of the American Physical Society The American Physical Society honors members with the designation ''Fellow'' for having made significant accomplishments to the field of physics. The following lists are divided chronologically by the year of designation. * List of American Physic ...

(APS) in 2021, after a nomination from the APS Division of Gravitational Physics, "for fundamental results on global existence of solutions of the Einstein field equations, and for many contributions to the understanding of gravitational wave memory". She was named to the 2023 class of Fellows of the

American Mathematical Society The American Mathematical Society (AMS) is an association of professional mathematicians dedicated to the interests of mathematical research and scholarship, and serves the national and international community through its publications, meetings, ...

, "for contributions to mathematical general relativity and geometric analysis".

References

External links

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{{DEFAULTSORT:Bieri, Lydia 1972 births Living people People from Sursee District 21st-century American mathematicians American women mathematicians American cosmologists American women physicists American physicists Swiss mathematicians Swiss women mathematicians Swiss cosmologists Swiss women physicists Cosmologists Applied mathematicians Differential geometers Mathematical physicists Historians of science ETH Zurich alumni University of Michigan faculty Fellows of the American Mathematical Society Fellows of the American Physical Society 21st-century American women