%0 Journal Article %T Exponential dichotomies for linear discrete-time systems in Banach spaces %A Ioan-Lucian Popa %A Mihail Megan %A Traian Ceau£żu %J Applicable Analysis and Discrete Mathematics %D 2012 %I University of Belgrade and Academic Mind %R 10.2298/aadm120319008p %X In this paper we investigate some dichotomy concepts for linear difference equations in Banach spaces. Characterizations of these concepts are given. Some illustrating examples clarify the relations between these concepts. %K Uniform exponential dichotomy %K nonuniform exponential dichotomy %K exponential dichotomy %K strong exponential dichotomy. %U http://pefmath.etf.rs/vol6num1/AADM-Vol6-No1-140-155.pdf