Born in Fayence, France, Dulac graduated from École Polytechnique (Paris, class of 1892) and obtained a Doctorate in Mathematics.

Holder of a pulpit in pure mathematics in the Sciences University of Lyon (France) in 1911, his teaching was suspended during the first world war (1914 – 1918) and he had to serve as officer in the French army.

After the war, he became holder of a pulpit of differential and integral calculus and also taught in École Centrale Lyon.

Among his publications: His researches are still mentioned or challenged by international university PHD students and professors, even a hundred years after being published.

As an example: Sources: Technica, n° 190, Nov. 1955, École Centrale Lyon, French Academy of Sciences, updated by Louis Boisgibault, his great grandson.