**DIPS 3/2001**[tex source, PostScript, PDF file, dvi]-
**Title:**Contact classification of linear ordinary differential equations. I.**Author:**V.A. YumaguzhinIt is known that a linear ordinary differential equation of order n ³ 3 can be transformed to the Laguerre-Forsyth form

y^{(n)}= å_{i = 3}^{n}a_{n-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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