John H. Hubbard
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John Hamal Hubbard was born on October 6 or 7, 1945 (the actual date is unknown). He is an American mathematician who is currently a professor at Cornell University and the Université de Provence. He is well known for the mathematical contributions he made with Adrien Douady in the study of the Mandelbrot set. One of their most important results is that the Mandelbrot set is connected.Hubbard graduated with a Doctorat d'Etat from Université de Paris-Sud in 1973; his thesis was entitled Sur Les Sections Analytiques de La Courbe Universelle de Teichmüller and was published by the American Mathematical Society. Hubbard has a variety of mathematical interests ranging from complex analysis to differential geometry. He has written many influential papers on complex dynamics, and he has written several books. He has just completed another: the first volume of a series devoted to Teichmüller theory and applications to four revolutionary theorems of William Thurston.
