%0 Journal Article %T Mixed Monotone Iterative Technique for Impulsive Periodic Boundary Value Problems in Banach Spaces %A Chen Pengyu %J Boundary Value Problems %D 2011 %I Springer %X This paper deals with the existence of -quasi-solutions for impulsive periodic boundary value problems in an ordered Banach space . Under a new concept of upper and lower solutions, a new monotone iterative technique on periodic boundary value problems of impulsive differential equations has been established. Our result improves and extends some relevant results in abstract differential equations. %U http://www.boundaryvalueproblems.com/content/2011/421261