Characteristic equation; Repeated roots; Abel's Theorem
This document describes how one can derive the solutions to a linear constant coefficient homogeneous differential equation with repeated roots in the characteristic equation with Abel's Theorem.
"Using Abel's Theorem to Explain Repeated Roots of the Characteristic Equation,"
Vol. 8, Article 3.
Available at: http://scholarship.claremont.edu/codee/vol8/iss1/3