Geodesic
Periodic orbits with small angular momentum for singular radially symmetric systems
Electronic journal of differential equations, Tome 2014 (2014)
We study radially symmetric systems with a repulsive singularity, and show the existence of periodic orbits with small angular momentum. Our proofs are based on the use of topological degree theory.
Classification : 34C25
Keywords: periodic solutions, singular radially symmetric systems, topological degree theory 
@article{EJDE_2014__2014__a153,
     author = {Liao,  Fang-Fang},
     title = {Periodic orbits with small angular momentum for singular radially symmetric systems},
     journal = {Electronic journal of differential equations},
     year = {2014},
     volume = {2014},
     zbl = {1305.34061},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2014__2014__a153/}
}
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%A Liao,  Fang-Fang
%T Periodic orbits with small angular momentum for singular radially symmetric systems
%J Electronic journal of differential equations
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%F EJDE_2014__2014__a153
Liao,  Fang-Fang. Periodic orbits with small angular momentum for singular radially symmetric systems. Electronic journal of differential equations, Tome 2014 (2014). http://geodesic.mathdoc.fr/item/EJDE_2014__2014__a153/