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Oscillation of impulsive conformable fractional differential equations

Jessada Tariboon, Sotiris K. Ntouyas (2016)

Open Mathematics

In this paper, we investigate oscillation results for the solutions of impulsive conformable fractional differential equations of the form tkDαpttkDαxt+rtxt+qtxt=0,t≥t0,t≠tk,xtk+=akx(tk−),tkDαxtk+=bktk−1Dαx(tk−),k=1,2,…. t k D α p t t k D α x t + r t x t + q t x t = 0 , t t 0 , t t k , x t k + = a k x ( t k - ) , t k D α x t k + = b k t k - 1 D α x ( t k - ) , k = 1 , 2 , ... . Some new oscillation results are obtained by using the equivalence transformation and the associated Riccati techniques.

Periodic Solutions for Nonlinear Evolution Equations with Non-instantaneous Impulses

Michal Fečkan, JinRong Wang, Yong Zhou (2014)

Nonautonomous Dynamical Systems

In this paper, we consider periodic solutions for a class of nonlinear evolution equations with non-instantaneous impulses on Banach spaces. By constructing a Poincaré operator, which is a composition of the maps and using the techniques of a priori estimate, we avoid assuming that periodic solution is bounded like in [1-4] and try to present new sufficient conditions on the existence of periodic mild solutions for such problems by utilizing semigroup theory and Leray-Schauder's fixed point theorem....

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