John H. Hubbard

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John H. Hubbard
Hubbard in 2011
Born	(1945-10-06) October 6, 1945 (age 78)
Alma mater	Valley Forge High School Université de Paris-Sud (Dr.E.) Harvard University (B.S.)
Scientific career
Institutions	Cornell University (current), Harvard University
Thesis	Sur Les Sections Analytiques de La Courbe Universelle de Teichmüller  (1973)
Doctoral advisor	Adrien Douady
Doctoral students	Sarah Koch
Website	pi.math.cornell.edu/~hubbard/

John Hamal Hubbard (born October 6 or 7, 1945) is an American mathematician and professor at Cornell University and the Université de Provence. He is known for the mathematical contributions he made with Adrien Douady in the field of complex dynamics, including a study of the Mandelbrot set. One of their most important results is that the Mandelbrot set is connected.