# Fixed point theory

## Inequalities and approximation theory

Abstract The purpose of this paper is twofold. Firstly, we present an equivalence property involving isotonic linear functionals. Secondly, by…

## Iterates of some bivariate approximation process via weakly Picard operators

Abstract In the present paper we introduce a general class of positive operators of discrete type acting on the space…

## Iterates of a class of discrete linear operators via contraction principle

Abstract In this paper we are concerned with a general class of positive linear operators of discrete type. Based on…

## Iterates of multidimensional approximation operators via Perov theorem

AbstractThe starting point is an approximation process consisting of linear and positive operators. The purpose of this note is to…

## Krasnoselskii type theorems in product Banach spaces and applications to systems of nonlinear transport equations and mixed fractional differential equations

AbstractIn this paper, we use a new technique for the treatment of systems based on the advantage of vector-valued norms…

## How many steps still left to x*?

Abstract The high speed of $$x_{k}\rightarrow x^\ast\in{\mathbb R}$$ is usually measured using the C-, Q- or R-orders: \tag{$C$} \lim \frac…

## Existence and uniqueness of the solution for an integral equation with supremum

AbstractFollowing the idea of T. Wongyat and W. Sintunavarat, we obtain some existence and uniqueness results for the solution of…

## Stability results and qualitative properties for Mann’s algorithm via admissible perturbations technique

AbstractIn this paper we will present data dependence results for Mann iteration schene related to the fixed point inclusion. The…

## On the characterizations of partial metrics and quasimetrics

AbstractWe present the relationship between the notion of partial metric, which has applications in Computer Science, that of quasimetric (which…

## Solving inverse problems via hemicontractive maps

AbstractWe prove a “collage” theorem for hemicontractive maps and we use it for inverse problems. A numerical example is given.…