Adrien Douady
Adrien Douady (September 25, 1935 - November 2, 2006) was a French mathematician renowned for his fundamental contributions to complex dynamics and algebraic geometry. Together with his student John H. Hubbard, he played a key role in the mathematical study of the Mandelbrot set and the iteration of rational functions. His work helped lay the formal foundations for understanding chaotic behavior in complex functions and for visualizing fractal structures of deep mathematical beauty. He also contributed significantly to the development of topological tools applied to complex analysis.