• 1906
    (b.) -
    1973 May 21


Grigore Moisil attended primary school in Bucharest, then high school in Vaslui and Bucharest (at "Spiru Haret" High School) between 1916-1922. In 1924 he was admitted at the Constructions Faculty of the Polytechnic University of Bucharest, and also the Mathematics Faculty of the University of Bucharest. He showed a stronger interest in mathematics, so he quit the Polytechnic University in 1929, despite already having passed all the third-year exams. In 1929 he defended his Ph.D. thesis, La m?canique analytique des systemes continus (Analytical mechanics of continuous systems), before a commission led by Gheorghe Ţiţeica, with Dimitrie Pompeiu and Anton Davidoglu as members. The thesis was published the same year by the Gauthier-Villars publishing house in Paris, and received favourable comments from Vito Volterra, Tullio Levi-Civita, and Paul L?vy. Moisil published papers on mechanics, mathematical analysis, geometry, algebra and mathematical logic. He developed a multi-dimensional extension of Pompeiu's areolar derivative, and studied monogenic functions of one hypercomplex variable with applications to mechanics. Moisil also introduced some many-valued algebras, which he called Łukasiewicz algebras (now also named Łukasiewicz-Moisil algebras), and used them in logic and the study of automata theory. He created new methods to analyze finite automata, and had many contributions to the field of automata theory in algebra.