Lie Algebraic Solution of Linear Differential Equations
- 1 April 1963
- journal article
- Published by AIP Publishing in Journal of Mathematical Physics
- Vol. 4 (4), 575-581
- https://doi.org/10.1063/1.1703993
Abstract
The solution U(t) to the linear differential equation dU/dt = h(t)U can be represented by a finite product of exponential operators; In many interesting cases the representation is global. U(t) = exp[g1(t)H1] exp [g2(t)H2] … exp[gn(t)Hn] where gi(t) are scalar functions and Hi are constant operators. The number, n, of terms in this expansion is equal to the dimension of the Lie algebra generated by H(t). Each term in this product has time‐independent eigenvectors. Some applications of this solution to physical problems are given.Keywords
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