In this paper, we define the exponential dichotomy of linear dynamic equations on time
scales, then we present perturbation theorems on the roughness of exponential dichotomy …

This paper is concerned with a single-species model with nonlinear harvesting rate and
feedback control on time scales, which modified from Ref.[11]. Based on the theory of …

Let T⊂ R be a periodic time scale in shifts δ±with period P∈(t 0,∞) T and t 0∈ T is
nonnegative and fixed. By using a multiple fixed point theorem in cones, some criteria are …

In this paper, we extend the concept of function series to time scales, and then we present
two necessary and sufficient conditions and several criteria for uniform convergence …

In this paper, we consider an nth order multi-point boundary value problem on time scales.
We establish criteria for the existence of at least one or two positive solutions. We shall also …

<noindent Electronic Journal of Differential Equations , Vol . 20 1 0 ( 201 0 ) , No . 1 1 8 , pp .
1 -- <noindent ISSN : Page 1 <noindent Electronic Journal of Differential Equations , Vol . 20 …

We are concerned in this paper with the almost automorphy of dynamic systems on time
scales including the evolution equations in a Banach space X u∆(t)= Au (t)+ f (t, u (t)), where …

Let T⊂ R be a periodic time scale in shifts δ±with period P∈(t0,∞) T and t0∈ T is
nonnegative and fixed. By using a multiple fixed point theorem in cones, some criteria are …

First, we fill in key gaps in Steiner's nice characterization of the most nearly circular ellipse
which passes through the vertices of a convex quadrilateral, Ð. Steiner proved that there is …