Geodesic
Existence of three positive periodic solutions for differential systems with feedback controls on time scales
Electronic journal of differential equations, Tome 2010 (2010)
Using the Leggett-Williams multiple fixed point theorem, we establish criteria for the existence of three positive periodic solutions of a class of differential systems with feedback controls on time scales.
Classification : 34K13
Keywords: positive periodic solutions, feedback controls, time scales, Leggett-Williams multiple fixed point theorem 
@article{EJDE_2010__2010__a248,
     author = {Li,  Yongkun and Zhang,  Tianwei and Suo,  Jianfeng},
     title = {Existence of three positive periodic solutions for differential systems with feedback controls on time scales},
     journal = {Electronic journal of differential equations},
     year = {2010},
     volume = {2010},
     zbl = {1203.34157},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2010__2010__a248/}
}
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%A Suo,  Jianfeng
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%J Electronic journal of differential equations
%D 2010
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%G en
%F EJDE_2010__2010__a248
Li,  Yongkun; Zhang,  Tianwei; Suo,  Jianfeng. Existence of three positive periodic solutions for differential systems with feedback controls on time scales. Electronic journal of differential equations, Tome 2010 (2010). http://geodesic.mathdoc.fr/item/EJDE_2010__2010__a248/