Geodesic
Stability and periodicity of solutions for delay dynamic systems on time scales
Electronic Journal of Differential Equations, Tome 2014 (2014).

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Summary: This article concerns the stability and periodicity of solutions to the delay dynamic system $$ x^{\triangle}(t)=A(t) x(t) + F(t, x(t), x(g(t)))+C(t) $$ on a time scale. By the inequality technique for vectors, we obtain some stability criteria for the above system. Then, by using the Horn fixed point theorem, we present some conditions under which our system is asymptotically periodic and its periodic solution is unique. In particular, the periodic solution is positive under proper assumptions.
Classification : 34N05, 34K13, 34K20
Keywords: delay dynamic system, stability, periodic solution, fixed point, time scales 
@article{EJDE_2014__2014__a57,
     author = {Zhu, Zhi-Qiang and Wang, Qi-Ru},
     title = {Stability and periodicity of solutions for delay dynamic systems on time scales},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2014},
     year = {2014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2014__2014__a57/}
}
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Zhu, Zhi-Qiang; Wang, Qi-Ru. Stability and periodicity of solutions for delay dynamic systems on time scales. Electronic Journal of Differential Equations, Tome 2014 (2014). http://geodesic.mathdoc.fr/item/EJDE_2014__2014__a57/