Walter David Neumann (1 January 1946 – 24 September 2024) was a British-American mathematician who worked in

topology Topology (from the Greek language, Greek words , and ) is the branch of mathematics concerned with the properties of a Mathematical object, geometric object that are preserved under Continuous function, continuous Deformation theory, deformat ...

geometric group theory Geometric group theory is an area in mathematics devoted to the study of finitely generated groups via exploring the connections between algebraic properties of such groups and topological and geometric properties of spaces on which these group ...

, and

singularity theory In mathematics, singularity theory studies spaces that are almost manifolds, but not quite. A string can serve as an example of a one-dimensional manifold, if one neglects its thickness. A singularity can be made by balling it up, dropping it ...

. He was a professor at

Barnard College Barnard College is a Private college, private Women's colleges in the United States, women's Liberal arts colleges in the United States, liberal arts college affiliated with Columbia University in New York City. It was founded in 1889 by a grou ...

Columbia University Columbia University in the City of New York, commonly referred to as Columbia University, is a Private university, private Ivy League research university in New York City. Established in 1754 as King's College on the grounds of Trinity Churc ...

. Neumann obtained his Ph.D. under the joint supervision of Friedrich Hirzebruch and Klaus Jänich at the

University of Bonn The University of Bonn, officially the Rhenish Friedrich Wilhelm University of Bonn (), is a public research university in Bonn, North Rhine-Westphalia, Germany. It was founded in its present form as the () on 18 October 1818 by Frederick Willi ...

in 1969.Faces of Geometry, A Conference in Honor of Walter Neumann
/ref> He was a son of the mathematicians Bernhard Neumann and Hanna Neumann. His brother Peter M. Neumann was also a mathematician. Walter Neumann was elected a member of the European Academy of Sciences in 2002. He was in the Inaugural 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, ...

, starting from 2013. Neumann died on 24 September 2024, at the age of 78.In Memoriam: Walter D. Neumann
Department of Mathematics,

. Accessed October 2, 2024

References

External links

Google Scholar ProfileHome page at ColumbiaWalter D. Neumann
Celebratio Mathematica, 2022 {{DEFAULTSORT:Neumann, Walter 1946 births 2024 deaths 20th-century British mathematicians British topologists Fellows of the American Mathematical Society