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Article overview
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Twistor geometry of a pair of second order ODEs | | Stephen Casey
; Maciej Dunajski
; Paul Tod
; | | Date: |
19 Mar 2012 | | Abstract: | We discuss the twistor correspondence between path geometries in three
dimensions with vanishing Wilczynski invariants and anti-self-dual conformal
structures of signature $(2, 2)$. We show how to reconstruct a system of ODEs
with vanishing invariants for a given conformal structure, highlighting the
Ricci-flat case in particular. Using this framework, we give a new derivation
of the Wilczynski invariants for a system of ODEs whose solution space is
endowed with a conformal structure. We explain how to reconstruct the conformal
structure directly from the integral curves, and present new examples of
systems of ODEs with point symmetry algebra of dimension four and greater which
give rise to anti--self--dual structures with conformal symmetry algebra of the
same dimension. | | Source: | arXiv, 1203.4158 | | Services: | Forum | Review | PDF | Favorites | |
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