A unified approach to periodic solutions for a class of non-autonomous second order Hamiltonian systems
2021 ◽
Vol 58
◽
pp. 103218
Keyword(s):
2014 ◽
Vol 13
(1)
◽
pp. 75-95
◽
2010 ◽
Vol 55
(5)
◽
pp. 373-384
◽
Keyword(s):
Keyword(s):
Keyword(s):
2013 ◽
Vol 198
(1)
◽
pp. 111-127
◽
Keyword(s):