Portrait of Dr. Decoste in front of an American flag.

Dr. Rachelle DeCoste

Professor of Mathematics

Mathematical Sciences

rachelle.decoste [at] westpoint.edu

Dr. Rachelle DeCoste is a professor of mathematics and currently serving as the Mathematical Sciences Program Director.

She first taught at West Point in 2004-2007. Then she was a professor at Wheaton College in MA. Dr. DeCoste has taught a wide variety of mathematics courses, including a Geometry class with digital fabrication. She enjoys engaging with students in class and in mathematical research. Dr. DeCoste has published papers in Differential Geometry, in particular most of her work has considered the density of closed geodesics on manifolds arising from Lie groups and algebras. Through these objects she has been able to combine her love of algebra and geometry. Throughout her career, Dr. DeCoste has actively worked to attract top talent to the mathematics and STEM communities - creating programs focused on that goal.

Ph.D. Mathematics UNC Chapel Hill

M.S. Mathematics UNC Chapel Hill

B.A. Mathematics Connecticut College

Research Interests

Geodesics on Lie manifolds

Schreier graphs and 2n-regular graphs