On Magid's approach to the inverse problem in differential Galois theory. (1996)
Kovacic, Jerry, Mitschi, Claude, Singer, Michael F.
We present counterexamples to Theorem 7.3 and Theorem 7.13 in {em Lectures in Differential Galois Theory} by A. Magid, University Lecture Series, Vol. 7, AMS 1994.
On Magid's approach to the inverse problem in differential Galois theory. (1996)
Kovacic, Jerry, Mitschi, Claude, Singer, Michael F.
We present counterexamples to Theorem 7.3 and Theorem 7.13 in {em Lectures in Differential Galois Theory} by A. Magid, University Lecture Series, Vol. 7, AMS 1994.
An algorithm for solving second order linear homogeneous differential equations (1986)
Every student of calculus wants a formula to solve dierential equations. Of course that is impossible, at least if we want \closed-form " solutions. The situation is analogous to that of...