Background
Deconge was born in 1933 in Wickliff, Louisiana.
Deconge was born in 1933 in Wickliff, Louisiana.
She was the 15th African-American woman to earn her Doctor of Philosophy in mathematics. She then attended Seton Hill College where she studied mathematics and science.
Between 1952 and 1955, Deconge taught elementary school in parochial schools in Baton Rouge and Lafayette. In 1962, Deconge received a master"s degree in mathematics from Louisiana State University. In 1968, she received her Doctor of Philosophy in mathematics from Saint Louis University for her dissertation 2-Normed Lattices and 2-Metric Spaces.
After receiving her Doctor of Philosophy she worked as an assistant professor of mathematics at Loyola University New Orleans from 1968 to 1971.
In 1971 she became an assistant professor at Southern University in Baton Rouge. Sister Mary Sylvester has had her work published in Proceedings of the National Academy of Sciences, The Notices of the American Mathematical Society, and the Journal of Mathematical Analytical Applications.
She is known for her publications related to Cauchy"s Problem for Higher-Order Abstract Parabolic Equations.