Herbert Busemann
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Herbert Busemann (12 May 1905 – 3 February 1994) was a
German-American German Americans (german: Deutschamerikaner, ) are Americans who have full or partial German ancestry. With an estimated size of approximately 43 million in 2019, German Americans are the largest of the self-reported ancestry groups by the Unite ...
mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change. History On ...
specializing in
convex Convex or convexity may refer to: Science and technology * Convex lens, in optics Mathematics * Convex set, containing the whole line segment that joins points ** Convex polygon, a polygon which encloses a convex set of points ** Convex polytop ...
and differential geometry. He is the author of Busemann's theorem in
Euclidean geometry Euclidean geometry is a mathematical system attributed to ancient Greek mathematician Euclid, which he described in his textbook on geometry: the '' Elements''. Euclid's approach consists in assuming a small set of intuitively appealing axioms ...
and geometric tomography. He was a member of the Royal Danish Academy and a winner of the
Lobachevsky Medal The Lobachevsky Prize, awarded by the Russian Academy of Sciences, and the Lobachevsky Medal, awarded by the Kazan State University, are mathematical awards in honor of Nikolai Ivanovich Lobachevsky. History The Lobachevsky Prize was established ...
(1985), the first American mathematician to receive it. He was also a Fulbright scholar in
New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count ...
in 1952.


Biography

Herbert Busemann was born in
Berlin Berlin ( , ) is the capital and List of cities in Germany by population, largest city of Germany by both area and population. Its 3.7 million inhabitants make it the European Union's List of cities in the European Union by population within ci ...
to a well-to-do family. His father, Alfred Busemann, was a director of Krupp, where Busemann also worked for several years. He studied at
University of Munich The Ludwig Maximilian University of Munich (simply University of Munich or LMU; german: Ludwig-Maximilians-Universität München) is a public research university in Munich, Germany. It is Germany's sixth-oldest university in continuous operatio ...
,
Paris Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), ma ...
, and
Rome , established_title = Founded , established_date = 753 BC , founder = King Romulus (legendary) , image_map = Map of comune of Rome (metropolitan city of Capital Rome, region Lazio, Italy).svg , map_caption ...
. He defended his dissertation in
University of Göttingen The University of Göttingen, officially the Georg August University of Göttingen, (german: Georg-August-Universität Göttingen, known informally as Georgia Augusta) is a public research university in the city of Göttingen, Germany. Founded ...
in 1931, where his advisor was
Richard Courant Richard Courant (January 8, 1888 – January 27, 1972) was a German American mathematician. He is best known by the general public for the book '' What is Mathematics?'', co-written with Herbert Robbins. His research focused on the areas of real ...
. He remained in
Göttingen Göttingen (, , ; nds, Chöttingen) is a university city in Lower Saxony, central Germany, the capital of the eponymous district. The River Leine runs through it. At the end of 2019, the population was 118,911. General information The ori ...
as an assistant until 1933, when he escaped
Nazi Germany Nazi Germany (lit. "National Socialist State"), ' (lit. "Nazi State") for short; also ' (lit. "National Socialist Germany") (officially known as the German Reich from 1933 until 1943, and the Greater German Reich from 1943 to 1945) was ...
to
Copenhagen Copenhagen ( or .; da, København ) is the capital and most populous city of Denmark, with a proper population of around 815.000 in the last quarter of 2022; and some 1.370,000 in the urban area; and the wider Copenhagen metropolitan ar ...
(he had a Jewish grandfather). He worked at the
University of Copenhagen The University of Copenhagen ( da, Københavns Universitet, KU) is a prestigious public research university in Copenhagen, Denmark. Founded in 1479, the University of Copenhagen is the second-oldest university in Scandinavia after Uppsala Unive ...
until 1936, when he left to the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...
. There, he got married in 1939 and naturalized in 1943. He had temporary positions at the
Institute for Advanced Study The Institute for Advanced Study (IAS), located in Princeton, New Jersey, in the United States, is an independent center for theoretical research and intellectual inquiry. It has served as the academic home of internationally preeminent schola ...
,
Johns Hopkins University Johns Hopkins University (Johns Hopkins, Hopkins, or JHU) is a private research university in Baltimore, Maryland. Founded in 1876, Johns Hopkins is the oldest research university in the United States and in the western hemisphere. It consi ...
,
Illinois Institute of Technology Illinois Institute of Technology (IIT) is a private research university in Chicago, Illinois. Tracing its history to 1890, the present name was adopted upon the merger of the Armour Institute and Lewis Institute in 1940. The university has prog ...
, Smith College, and eventually became a professor in 1947 at
University of Southern California , mottoeng = "Let whoever earns the palm bear it" , religious_affiliation = Nonsectarian—historically Methodist , established = , accreditation = WSCUC , type = Private research university , academic_affiliations = , endowment = $8.1 ...
. He advanced to a
distinguished professor Distinguished Professor is an academic title given to some top tenured professors in a university, school, or department. Some distinguished professors may have endowed chairs. In the United States Often specific to one institution, titles such ...
in 1964, and continued working at USC until his retirement in 1970. Over the course of his work at USC, he supervised over 10 Ph.D. students. He is the author of six monographs, two of which were translated into Russian. He received
Lobachevsky Medal The Lobachevsky Prize, awarded by the Russian Academy of Sciences, and the Lobachevsky Medal, awarded by the Kazan State University, are mathematical awards in honor of Nikolai Ivanovich Lobachevsky. History The Lobachevsky Prize was established ...
in 1985 for his book ''The geometry of geodesics''. Busemann was also an active mathematical citizen. At different times, he was the president of the
California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...
chapter of Mathematical Association of America, and a member of the council 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, ...
. Busemann was also an accomplished linguist; he was able to read and speak in French,
German German(s) may refer to: * Germany (of or related to) ** Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ge ...
,
Spanish Spanish might refer to: * Items from or related to Spain: **Spaniards are a nation and ethnic group indigenous to Spain **Spanish language, spoken in Spain and many Latin American countries **Spanish cuisine Other places * Spanish, Ontario, Can ...
,
Italian Italian(s) may refer to: * Anything of, from, or related to the people of Italy over the centuries ** Italians, an ethnic group or simply a citizen of the Italian Republic or Italian Kingdom ** Italian language, a Romance language *** Regional Ita ...
,
Russian Russian(s) refers to anything related to Russia, including: *Russians (, ''russkiye''), an ethnic group of the East Slavic peoples, primarily living in Russia and neighboring countries *Rossiyane (), Russian language term for all citizens and peo ...
, and
Danish Danish may refer to: * Something of, from, or related to the country of Denmark People * A national or citizen of Denmark, also called a "Dane," see Demographics of Denmark * Culture of Denmark * Danish people or Danes, people with a Danish a ...
. He could also read
Arabic Arabic (, ' ; , ' or ) is a Semitic language spoken primarily across the Arab world.Semitic languages: an international handbook / edited by Stefan Weninger; in collaboration with Geoffrey Khan, Michael P. Streck, Janet C. E.Watson; Walter ...
,
Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...
,
Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor ...
and
Swedish Swedish or ' may refer to: Anything from or related to Sweden, a country in Northern Europe. Or, specifically: * Swedish language, a North Germanic language spoken primarily in Sweden and Finland ** Swedish alphabet, the official alphabet used by ...
. He translated a number of papers and monograph, most notably from
Russian Russian(s) refers to anything related to Russia, including: *Russians (, ''russkiye''), an ethnic group of the East Slavic peoples, primarily living in Russia and neighboring countries *Rossiyane (), Russian language term for all citizens and peo ...
, a rare language at the time. He was also an accomplished artist and had several public exhibitions of his
Hard-edge painting Hard-edge painting is painting in which abrupt transitions are found between color areas. Color areas are often of one unvarying color. The Hard-edge painting style is related to Geometric abstraction, Op Art, Post-painterly Abstraction, and C ...
s]. He died in
Santa Ynez, California Santa Ynez (; Spanish for "St. Agnes") is a census-designated place (CDP) in the Santa Ynez Valley of Santa Barbara County, California. The town of Santa Ynez is one of the communities of the Santa Ynez Valley. It features the Santa Ynez Airp ...
on February 3, 1994, at the age of 88. Busemann's Selected papers are now available in two volumes (908 and 842 pages), with introductory biographical material and commentaries on his work, and published by edited by Athanase Papadopoulos, Springer Verlag, 2018.


Books

* Herbert Busemann, Selected Works, (Athanase Papadopoulos, ed.) Volume I, , XXXII, 908 p., Springer International Publishing, 2018. * Herbert Busemann, Selected Works, (Athanase Papadopoulos, ed.) Volume II, , XXXV, 842 p., Springer International Publishing, 2018. * Introduction to algebraic manifolds, Princeton University Press, 1939. * with Paul J. Kelly: Projective geometry and projective metrics, Academic Press, 1953
Dover 2006
* Convex Surfaces, Interscience 1958
Dover, 2008
* Geometry of Geodesics, Academic Press 1955, Dover, 2005.

Princeton University Press, Oxford University Press, 1942. * with Bhalchandra Phadke: Spaces with distinguished geodesics, Dekker, 1987.
Recent synthetic differential geometry
Springer 1970.


See also

* Blaschke–Busemann measure * Busemann function * Busemann–Petty problem * Busemann G-space * Geodesic bicombing


Notes


References

* Reinhard Siegmund-Schultze, ''Mathematicians Fleeing from Nazi Germany: Individual Fates and Global Impact'', p. 107, Princeton University Press, 2009. * Richard J. Gardner, ''Geometric tomography'', p. 309, Cambridge University Press, 1994. * "Professor as SC plans study in New Zealand", ''
Los Angeles Times The ''Los Angeles Times'' (abbreviated as ''LA Times'') is a daily newspaper that started publishing in Los Angeles in 1881. Based in the LA-adjacent suburb of El Segundo since 2018, it is the sixth-largest newspaper by circulation in the U ...
'', 6 January 1952, p. 22. * "Professors write Geometry Textbook", ''Los Angeles Times'' 10 August 1953, p. 1. * "Herbert Busemann, Oil Paintings", ''Los Angeles Times'', 18 January 1976, p. M59. * Lee Dembart, "An Unsung Geometer Keeps to His Own Plane", ''Los Angeles Times'', 14 July 1985, p. H3. * "Herbert Busemann; USC Emeritus Professor of Mathematics", ''Los Angeles Times'', 19 March 1994, p. 24. * Athanase Papadopoulos, "Herbert Busemann", ''Notices of the AMS'', vol. 65, No. 3, March 2018, p. 936-938.


External links

*
Herbert Busemann's biography
(in
Spanish Spanish might refer to: * Items from or related to Spain: **Spaniards are a nation and ethnic group indigenous to Spain **Spanish language, spoken in Spain and many Latin American countries **Spanish cuisine Other places * Spanish, Ontario, Can ...
). {{DEFAULTSORT:Busemann, Herbert 20th-century American mathematicians 20th-century German mathematicians Differential geometers University of Southern California faculty Institute for Advanced Study visiting scholars Jewish emigrants from Nazi Germany to the United States Ludwig Maximilian University of Munich alumni University of Paris alumni 1905 births 1994 deaths German expatriates in France German expatriates in Italy