We present a survey of the theory measures noncompactness and discuss some fixed point theorems Darbo’s type. apply technique to characterization classes compact operators between certain sequence spaces, in solving infinite systems integral equations spaces. also recent results related existence best proximity points (pairs) for cyclic noncyclic condensing Banach spaces equipped with suitable ...

The aim of this paper is to investigate a class of boundary value problem for fractional differential equations involving nonlinear integral conditions. The main tool used in our considerations is the technique associated with measures of weak noncompactness.