Age, Biography and Wiki
Stephen Smale was born on 15 July, 1930 in Flint, Michigan, U.S., is an American mathematician (born 1930). Discover Stephen Smale's Biography, Age, Height, Physical Stats, Dating/Affairs, Family and career updates. Learn How rich is he in this year and how he spends money? Also learn how he earned most of networth at the age of 93 years old?
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93 years old |
Zodiac Sign |
Cancer |
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15 July, 1930 |
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15 July |
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Flint, Michigan, U.S. |
Nationality |
United States
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We recommend you to check the complete list of Famous People born on 15 July.
He is a member of famous mathematician with the age 93 years old group.
Stephen Smale Height, Weight & Measurements
At 93 years old, Stephen Smale height not available right now. We will update Stephen Smale's Height, weight, Body Measurements, Eye Color, Hair Color, Shoe & Dress size soon as possible.
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Dating & Relationship status
He is currently single. He is not dating anyone. We don't have much information about He's past relationship and any previous engaged. According to our Database, He has no children.
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Stephen Smale Net Worth
His net worth has been growing significantly in 2023-2024. So, how much is Stephen Smale worth at the age of 93 years old? Stephen Smale’s income source is mostly from being a successful mathematician. He is from United States. We have estimated Stephen Smale's net worth, money, salary, income, and assets.
Net Worth in 2024 |
$1 Million - $5 Million |
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Pending |
Salary in 2023 |
Under Review |
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Source of Income |
mathematician |
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Timeline
Stephen Smale (born July 15, 1930) is an American mathematician, known for his research in topology, dynamical systems and mathematical economics.
Smale was born in Flint, Michigan and entered the University of Michigan in 1948.
Initially, he was a good student, placing into an honors calculus sequence taught by Bob Thrall and earning himself A's. However, his sophomore and junior years were marred with mediocre grades, mostly Bs, Cs and even an F in nuclear physics.
Smale obtained his Bachelor of Science degree in 1952.
Despite his grades, with some luck, Smale was accepted as a graduate student at the University of Michigan's mathematics department.
Yet again, Smale performed poorly in his first years, earning a C average as a graduate student.
When the department chair, Hildebrandt, threatened to kick Smale out, he began to take his studies more seriously.
Smale finally earned his PhD in 1957, under Raoul Bott, beginning his career as an instructor at the University of Chicago.
Early in his career, Smale was involved in controversy over remarks he made regarding his work habits while proving the higher-dimensional Poincaré conjecture.
He said that his best work had been done "on the beaches of Rio."
He has been politically active in various movements in the past, such as the Free Speech movement.
In 1960, Smale received a Sloan Research Fellowship and was appointed to the Berkeley mathematics faculty, moving to a professorship at Columbia the following year.
In 1964 he returned to a professorship at Berkeley, where he has spent the main part of his career.
He was awarded the Fields Medal in 1966 and spent more than three decades on the mathematics faculty of the University of California, Berkeley (1960–1961 and 1964–1995), where he currently is Professor Emeritus, with research interests in algorithms, numerical analysis and global analysis.
In 1966, having travelled to Moscow under an NSF grant to accept the Fields Medal, he held a press conference there to denounce the American position in Vietnam, Soviet intervention in Hungary and Soviet maltreatment of intellectuals.
After his return to the US, he was unable to renew the grant.
At one time he was subpoenaed by the House Un-American Activities Committee.
In 1988, Smale was the recipient of the Chauvenet Prize of the MAA.
He became a professor emeritus at Berkeley in 1995 and took up a post as professor at the City University of Hong Kong.
He also amassed over the years one of the finest private mineral collections in existence.
Many of Smale's mineral specimens can be seen in the book—The Smale Collection: Beauty in Natural Crystals.
In 2007, Smale was awarded the Wolf Prize in mathematics.
Smale proved that the oriented diffeomorphism group of the two-dimensional sphere has the same homotopy type as the special orthogonal group of
Smale's theorem has been reproved and extended a few times, notably to higher dimensions in the form of the Smale conjecture, as well as to other topological types.
In another early work, he studied the immersions of the two-dimensional sphere into Euclidean space.
By relating immersion theory to the algebraic topology of Stiefel manifolds, he was able to fully clarify when two immersions can be deformed into one another through a family of immersions.
Directly from his results it followed that the standard immersion of the sphere into three-dimensional space can be deformed (through immersions) into its negation, which is now known as sphere eversion.
He also extended his results to higher-dimensional spheres, and his doctoral student Morris Hirsch extended his work to immersions of general smooth manifolds.
Along with John Nash's work on isometric immersions, the Hirsch–Smale immersion theory was highly influential in Mikhael Gromov's early work on development of the h-principle, which abstracted and applied their ideas to contexts other than that of immersions.
In the study of dynamical systems, Smale introduced what is now known as a Morse–Smale system.
For these dynamical systems, Smale was able to prove Morse inequalities relating the cohomology of the underlying space to the dimensions of the (un)stable manifolds.
Part of the significance of these results is from Smale's theorem asserting that the gradient flow of any Morse function can be arbitrarily well approximated by a Morse–Smale system without closed orbits.
Using these tools, Smale was able to construct self-indexing Morse functions, where the value of the function equals its Morse index at any critical point.
Using these self-indexing Morse functions as a key tool, Smale resolved the generalized Poincaré conjecture in every dimension greater than four.
Building on these works, he also established the more powerful h-cobordism theorem the following year, together with the full classification of simply-connected smooth five-dimensional manifolds.
Smale also identified the Smale horseshoe, inspiring much subsequent research.
He also outlined a research program carried out by many others.
From 2003 to 2012, Smale was a professor at the Toyota Technological Institute at Chicago; starting August 1, 2009, he became a Distinguished University Professor at the City University of Hong Kong.