Joseph Ritt
Mathematician, Author
1893 – 1951
Who was Joseph Ritt?
Joseph Fels Ritt was an American mathematician at Columbia University in the early 20th century. He was born and died in New York.
After beginning his undergraduate studies at City College of New York, Ritt received his B.A. from George Washington University in 1913. He then earned a doctorate in mathematics from Columbia University in 1917 under the supervision of Edward Kasner. After doing calculations for the war effort in World War I, he joined the Columbia faculty in 1921. He served as department chair from 1942 to 1945, and in 1945 became the Davies Professor of Mathematics. In 1932, George Washington University honored him with a Doctorate in Science, and in 1933 he was elected to join the United States National Academy of Sciences. He has 463 academic descendants listed in the Mathematics Genealogy Project, mostly through his student Ellis Kolchin.
He is known for his work on characterizing the indefinite integrals that can be solved in closed form, for his work on the theory of ordinary differential equations and partial differential equations, for beginning the study of differential algebraic groups, and for the method of characteristic sets used in the solution of systems of polynomial equations.
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- Born
- Aug 23, 1893
New York City - Nationality
- United States of America
- Profession
- Education
- Columbia University
- George Washington University
- Bachelor of Arts
- Died
- Jan 5, 1951
New York City
Submitted
on July 23, 2013
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