On Determining the Structure of A by Analyzing $e^{At} $

Stability and Asymptotic Behavior of Differential Equations.

1968 • 1,455 citations

Linear Algebra and Matrix Theory.

1964 • 76 citations

Avoiding the Jordan Canonical Form in the Discussion of Linear Systems with Constant Coefficients

1966 • 69 citations

An Explicit Formula for e At

1967 • 30 citations

Some Explicit Formulas for the Exponential Matrix e tA

1969 • 21 citations