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**Thomas Wolff** (July 14, 1954, New York City – July 31, 2000, Kern County) was a noted mathematician, working primarily in the fields of harmonic analysis, complex analysis, and partial differential equations. As an undergraduate at Harvard University he regularly played poker with his classmate Bill Gates. While a graduate student at the University of California, Berkeley from 1976 to 1979, under the direction of Donald Sarason, he obtained a new proof of the corona theorem, a famously difficult theorem in complex analysis. He was made Professor of Mathematics at Caltech in 1986, and was there from 1988–1992 and from 1995 to his death in a car accident in 2000. He also held positions at the University of Washington, University of Chicago, New York University, and University of California, Berkeley.^{ [1] }^{ [2] }

The **City of New York**, usually referred to as either **New York City** (**NYC**) or simply **New York** (**NY**), is the most populous city in the United States. With an estimated 2018 population of 8,398,748 distributed over a land area of about 302.6 square miles (784 km^{2}), New York is also the most densely populated major city in the United States. Located at the southern tip of the state of New York, the city is the center of the New York metropolitan area, the largest metropolitan area in the world by urban landmass and one of the world's most populous megacities, with an estimated 19,979,477 people in its 2018 Metropolitan Statistical Area and 22,679,948 residents in its Combined Statistical Area. A global power city, New York City has been described as the cultural, financial, and media capital of the world, and exerts a significant impact upon commerce, entertainment, research, technology, education, politics, tourism, art, fashion, and sports. The city's fast pace has inspired the term *New York minute*. Home to the headquarters of the United Nations, New York is an important center for international diplomacy.

**Harmonic analysis** is a branch of mathematics concerned with the representation of functions or signals as the superposition of basic waves, and the study of and generalization of the notions of Fourier series and Fourier transforms. In the past two centuries, it has become a vast subject with applications in areas as diverse as number theory, representation theory, signal processing, quantum mechanics, tidal analysis and neuroscience.

**Complex analysis**, traditionally known as the **theory of functions of a complex variable**, is the branch of mathematical analysis that investigates functions of complex numbers. It is useful in many branches of mathematics, including algebraic geometry, number theory, analytic combinatorics, applied mathematics; as well as in physics, including the branches of hydrodynamics, thermodynamics, and particularly quantum mechanics. By extension, use of complex analysis also has applications in engineering fields such as nuclear, aerospace, mechanical and electrical engineering.

He received the Salem Prize in 1985 and the Bôcher Memorial Prize in 1999, for his contributions to analysis and particularly to the Kakeya conjecture.^{ [3] }^{ [4] } He was an Invited Speaker at the International Congress of Mathematicians in 1986 in Berkeley^{ [5] } and in 1998 in Berlin.^{ [6] }

The **Salem Prize**, founded by the widow of Raphael Salem, is awarded to young mathematicians judged to have done outstanding work in Salem's field of interest, primarily the theory of Fourier series. The prize is considered highly prestigious and many Fields Medalists previously received Salem prize. The prize was 5000 French Francs in 1990.

The **Bôcher Memorial Prize** was founded by the American Mathematical Society in 1923 in memory of Maxime Bôcher with an initial endowment of $1,450. It is awarded every three years for a notable research memoir in analysis that has appeared during the past six years in a recognized North American journal or was authored by a member of the Society. This provision, introduced in 1971 and modified in 1993, is a liberalization of the terms of the award. The current award is $5,000.

The **International Congress of Mathematicians** (**ICM**) is the largest conference for the topic of mathematics. It meets once every four years, hosted by the International Mathematical Union (IMU).

**William Paul Thurston** was an American mathematician. He was a pioneer in the field of low-dimensional topology. In 1982, he was awarded the Fields Medal for his contributions to the study of 3-manifolds. From 2003 until his death he was a professor of mathematics and computer science at Cornell University.

**Isadore Manuel Singer** is an American mathematician. He is an Institute Professor in the Department of Mathematics at the Massachusetts Institute of Technology and a Professor Emeritus of Mathematics at the University of California, Berkeley.

**Mikhail Leonidovich Gromov**, is an American-French-Russian mathematician known for work in geometry, analysis and group theory. He is a permanent member of IHÉS in France and a Professor of Mathematics at New York University.

**Sir Simon Kirwan Donaldson**, is an English mathematician known for his work on the topology of smooth (differentiable) four-dimensional manifolds and Donaldson–Thomas theory. He is currently a permanent member of the Simons Center for Geometry and Physics at Stony Brook University and a Professor in Pure Mathematics at Imperial College London.

**Norman Levinson** was an American mathematician. Some of his major contributions were in the study of Fourier transforms, complex analysis, non-linear differential equations, number theory, and signal processing. He worked closely with Norbert Wiener in his early career. He joined the faculty of the Massachusetts Institute of Technology in 1937. In 1954, he was awarded the Bôcher Memorial Prize of the American Mathematical Society and in 1971 the Chauvenet Prize of the Mathematical Association of America for his paper *A Motivated Account of an Elementary Proof of the Prime Number Theorem*. In 1974 he published a paper proving that more than a third of the zeros of the Riemann zeta function lie on the critical line, a result later improved to two fifths by Conrey.

**Terence Chi-Shen Tao** is an Australian-American mathematician who has worked in various areas of mathematics. He currently focuses on harmonic analysis, partial differential equations, algebraic combinatorics, arithmetic combinatorics, geometric combinatorics, compressed sensing and analytic number theory. As of 2015, he holds the James and Carol Collins chair in mathematics at the University of California, Los Angeles.

**Vitali Davidovich Milman** is a mathematician specializing in analysis. He is a professor at the Tel-Aviv University. In the past he was a President of the Israel Mathematical Union and a member of the “Aliyah” committee of Tel-Aviv University.

**Hendrik Willem Lenstra Jr.** is a Dutch mathematician.

**Michael Thoreau Lacey** is an American mathematician. Lacey received his Ph.D. from the University of Illinois at Urbana-Champaign in 1987, under the direction of Walter Philipp. His thesis was in the area of probability in Banach spaces, and solved a problem related to the law of the iterated logarithm for empirical characteristic functions. In the intervening years, his work has touched on the areas of probability, ergodic theory, and most importantly, harmonic analysis.

**Clifford Henry Taubes** is the William Petschek Professor of Mathematics at Harvard University and works in gauge field theory, differential geometry, and low-dimensional topology. His brother, Gary Taubes, is a science writer.

**Leon Melvyn Simon** is a Leroy P. Steele Prize and Bôcher Prize-winning mathematician. He is currently Professor Emeritus in the Mathematics Department at Stanford University.

**Sergiu Klainerman** is a mathematician known for his contributions to the study of hyperbolic differential equations and general relativity. He is currently the Eugene Higgins Professor of Mathematics at Princeton University, where he has been teaching since 1987. From 1980 to 1987 he was a faculty member at New York University.

**Gunther Alberto Uhlmann Arancibia** is a mathematician whose research focuses on inverse problems and imaging, microlocal analysis, partial differential equations and invisibility.

**Fabrice Bethuel** is a French mathematician. He holds a chair at Paris VI University.

**Kenneth Alan** "**Ken**" **Ribet** is an American mathematician, currently a professor of mathematics at the University of California, Berkeley. His mathematical interests include algebraic number theory and algebraic geometry.

**Michael Grain Crandall** is an American mathematician, specializing in differential equations.

**Jonathan Micah Rosenberg** is an American mathematician, working in algebraic topology, operator algebras, K-theory and representation theory, with applications to string theory in physics.

**Michael Eugene Taylor** is an American mathematician, working in partial differential equations.

**Frank Merle** is a French mathematician, specializing in partial differential equations and mathematical physics.

**Francis Michael Christ** is an American mathematician, specializing in harmonic analysis, partial differential equations, and several complex variables. He is known for the Christ–Kiselev maximal inequality.

- ↑ Chang, Kenneth (August 10, 2000). "Thomas Wolff, Math Expert, Dies at 46".
*New York Times*. Retrieved July 19, 2019. - ↑ "Thomas Wolff".
*Cal Tech Department of Mathematics*. California Institute of Technology. Retrieved July 19, 2019. - ↑ "1999 Bocher Prize" (PDF).
*Notices of the AMS*. American Mathematical Society. April 1999. Retrieved July 19, 2019. - ↑ Simon, Barry; Carleson, Lennart (May 2001). "Thomas H. Wolff (1954–2000)" (PDF).
*Notices of the AMS*.**48**(5): 482–490. Retrieved July 19, 2019. - ↑ Wolff, T. (1986). "Generalizations of Fatou's theorem".
*Proceedings of the International Congress of Mathematicians, Berkeley, CA*. vol. 2. pp. 990–993. - ↑ Wolff, Thomas (1998). "Maximal averages and packing of one dimensional sets".
*Doc. Math. (Bielefeld) Extra Vol. ICM Berlin, 1998, vol. II*. pp. 755–761.

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