Elisa Maria Eugenia Cibrario Cinquini (6 September 1905 – 16 May 1992) was an Italian mathematician specializing in partial differential equations and known for her research in association with Guido Fubini, Giuseppe Peano, and Francesco Tricomi.
She was educated at the Liceo classico Pietro Verri [it] in Lodi, Lombardy, and enrolled in 1923 in a program in physical sciences and mathematics at the University of Turin, where she became a student of Guido Fubini, and graduated in 1927.
[1] Peano died in 1932, and in the same year she obtained a free lecturership and began working with Francesco Tricomi.
[2] Cibrario's 1927 thesis concerned Laplace transforms and their application to parabolic partial differential equations.
[1][2] She joined the Istituto Lombardo Accademia di Scienze e Lettere in 1951 and became a full member in 1967.