Riho Terras | |
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Born | 13 June 1939 Tartu |
Died | 28 November 2005 (aged 66) San Diego |
Alma mater | |
Occupation | Mathematician |
Employer | |
Awards |
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Riho Terras (June 13, 1939 – November 28, 2005)[1] was an Estonian-American mathematician.[2] He was born in Tartu, Estonia and moved to Ulm, Germany before starting school.[3] In 1951 he emigrated to the United States along with his mother.[2][3] In 1965, he was given the Milton Abramowitz award for his studies at the University of Maryland.[4] He finished his PhD in 1970 at the University of Illinois Urbana-Champaign.[5]
He is known for the Terras theorem about the Collatz conjecture, published in 1976,[6] which proved that the conjecture holds for "almost all" numbers and established bounds for the conjecture.[7][8]
He married fellow mathematician Audrey Terras.[9]