Jets of differential equations having integrable extensions
1998 ◽
Vol 18
(6)
◽
pp. 1527-1544
Keyword(s):
We characterize the set of $n$-jets admitting an extension which is a germ of a differential equation with an analytic first integral, and compute its codimension in the $n$-jet space. Some applications in the case of the centre-focus problem are given.
2018 ◽
pp. 491
2014 ◽
Vol 58
(1)
◽
pp. 183-197
◽
1992 ◽
Vol 15
(3)
◽
pp. 509-515
◽
2008 ◽
Vol 144
(4)
◽
pp. 867-919
◽
Keyword(s):
2013 ◽
Vol 2013
◽
pp. 1-5
◽