DIPS 3/2001 [tex source, PostScript, PDF file, dvi]

Title: Contact classification of linear ordinary differential equations. I.

Author: V.A. Yumaguzhin

It is known that a linear ordinary differential equation of order n 3 can be transformed to the Laguerre-Forsyth form
y(n) = i = 3nan-i(x)y(n-i) by a point transformation of variables. The classification of equations of this form in a neighborhood of a regular point up to a contact transformation is given.

25 pages, LaTeX-2e (AmSLaTeX 1.2).

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