Theophil Henry Hildebrandt (24 July 1888 – 9 October 1980) was an American mathematician who did research on functional analysis and integration theory. Hildebrandt was born in

Dover, Ohio Dover is a city in Tuscarawas County, Ohio, United States, along the Tuscarawas River. The population was 13,112 at the 2020 census. It is located approximately south of Cleveland, west of Pittsburgh, and northeast of the state capital of Col ...

, graduated from high school at age 14 and at age 17 in 1905 received his bachelor's degree from the

University of Illinois The University of Illinois Urbana-Champaign (U of I, Illinois, University of Illinois, or UIUC) is a public land-grant research university in Illinois in the twin cities of Champaign and Urbana. It is the flagship institution of the Univer ...

. As a graduate student at the

University of Chicago The University of Chicago (UChicago, Chicago, U of C, or UChi) is a private university, private research university in Chicago, Illinois. Its main campus is located in Chicago's Hyde Park, Chicago, Hyde Park neighborhood. The University of Chic ...

he earned his master's degree in 1906 and his PhD in 1910, with thesis ''A Contribution to the Foundations of Fréchet's Calcul Fonctionnel'' written under the direction of

E. H. Moore Eliakim Hastings Moore (; January 26, 1862 – December 30, 1932), usually cited as E. H. Moore or E. Hastings Moore, was an American mathematician. Life Moore, the son of a Methodist minister and grandson of US Congressman Eliakim H. Moore, di ...

. He became an instructor 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 ...

in 1909 and then a full professor in 1923, serving as chair of the mathematics department from 1934 until his retirement in 1957. His doctoral students include Ralph S. Phillips,

Charles Earl Rickart Charles Earl Rickart (1913 – 17 April 2002) was an American mathematician, known for Rickart spaces. Rickart was born in Osage City, Kansas, and earned his B.A. and M.A. from the University of Kansas. In 1941 he received his PhD from the U ...

, and John V. Wehausen. In 1929 Hildebrandt received the

Chauvenet Prize The Chauvenet Prize is the highest award for mathematical expository writing. It consists of a prize of $1,000 and a certificate, and is awarded yearly by the Mathematical Association of America in recognition of an outstanding expository article ...

for his 1926 expository article ''The Borel theorem and its generalizations''. He served two years, 1945 and 1946, as president 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, ...

. The U. of Michigan established in 1962 in his honor the T. H. Hildebrandt Research Instructorships, which were changed in 1974 to assistant professorships. Hildebrandt, as an instructor at the U. of Michigan, enrolled in the School of Music and earned a degree in music with a major in organ. He played the organ in his local church. He married Dora E. Ware in 1921, and they had four children.Theophil Henry Hildebrandt , Faculty History Project
/ref> He died, aged 92, in Ann Arbor, Michigan.

Selected publications

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References

External links

* {{DEFAULTSORT:Hildebrandt, Theophil Henry University of Michigan School of Music, Theatre & Dance alumni 20th-century American mathematicians 1888 births 1980 deaths University of Chicago alumni Presidents of the American Mathematical Society Functional analysts People from Dover, Ohio Mathematicians from Ohio University of Illinois alumni University of Michigan faculty