Non-additive measure theory extends the traditional framework of measure and integration by allowing for measures that do not necessarily satisfy the additivity property. This broader perspective has ...

In the present paper we introduce Poisson type integrals for orthogonal expansions. We first give some direct computations for the moments and compute the rates of convergence by means of the modulus ...

In this paper we will use the technique of Picard operators in order to obtain two properties of the solution of the following nonlinear integral equation $x\left( t ...