Abstract
We show that classical Wilczynski-Se-ashi invariants of linear systems of ordinary differential equations are generalized in a natural way to contact invariants of non-linear ODEs. We explore geometric structures associated with equations that have vanishing generalized Wilczynski invariants and establish relationship of such equations with deformation theory of rational curves on complex algebraic surfaces.
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Doubrov, B. (2008). Generalized Wilczynski Invariants for Non-Linear Ordinary Differential Equations. In: Eastwood, M., Miller, W. (eds) Symmetries and Overdetermined Systems of Partial Differential Equations. The IMA Volumes in Mathematics and its Applications, vol 144. Springer, New York, NY. https://doi.org/10.1007/978-0-387-73831-4_2
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DOI: https://doi.org/10.1007/978-0-387-73831-4_2
Publisher Name: Springer, New York, NY
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