Existence of invariant curves for area-preserving mappings under weaker non-degeneracy conditions
1991 ◽
Vol 65
(3-4)
◽
pp. 617-643
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1990 ◽
Vol 10
(2)
◽
pp. 209-229
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Keyword(s):
1996 ◽
Vol 16
(1)
◽
pp. 51-86
◽
1988 ◽
Vol 8
(4)
◽
pp. 555-584
◽
Keyword(s):
1981 ◽
Vol 12
(4)
◽
pp. 630-638
◽
Keyword(s):