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In 1944, Mandelbrot returned to Paris, studied at the [[Lycée du Parc]] in [[Lyon]], and in 1945 to 1947 attended the [[École Polytechnique]], where he studied under [[Gaston Julia]] and [[Paul Lévy (mathematician)|Paul Lévy]]. From 1947 to 1949 he studied at California Institute of Technology, where he earned a master's degree in aeronautics.<ref name="guardian_obit" /> Returning to France, he obtained his [[Doctor of Philosophy|PhD degree]] in Mathematical Sciences at the [[University of Paris]] in 1952.<ref name="wolf" />
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In 1944, Mandelbrot returned to Paris, studied at the [[Lycée du Parc]] in [[Lyon]], and in 1945 to 1947 attended the [[École Polytechnique]], where he studied under [[Gaston Julia]] and [[Paul Lévy (mathematician)|Paul Lévy]]. From 1947 to 1949 he studied at California Institute of Technology, where he earned a master's degree in aeronautics.<ref name="guardian_obit"/> Returning to France, he obtained his [[Doctor of Philosophy|PhD degree]] in Mathematical Sciences at the [[University of Paris]] in 1952.<ref name="wolf" />
     
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