A Fixed-Point of View on Gradient Methods for Big Data

A Relaxed Extra Gradient Approximation Method of Two Inverse-Strongly Monotone Mappings for a General System of Variational Inequalities, Fixed Point and Equilibrium Problems

Evaluating the Mixed Marketing Factors of Tehran Big Fish Market from the Sellers' Viewpoint

Evaluation of the marketing mix of the biggest fish market in Iran from the point of view of the sellers was done by questionnaire in 2019. For data analysis, descriptive statistics and Friedman test were used. The results showed that, from the point of view of the sellers, customers prefer to buy consistently from a particular stand or place and their highest priority is salmon and Persian Gul...

Approximate a quadratic mapping in multi-Banach spaces, a fixed point approach

Using the fixed point method, we prove the generalized Hyers-Ulam-Rassias stability of the following functional equation in multi-Banach spaces:begin{equation} sum_{ j = 1}^{n}fBig(-2 x_{j} + sum_{ i = 1, ineq j}^{n} x_{i}Big) =(n-6) fBig(sum_{ i = 1}^{n} x_{i}Big) + 9 sum_{ i = 1}^{n}f(x_{i}).end{equation}

اولویت‌بندی برنامه‌های بهبود سازمان با استفاده از مدل غربالگری فازی

We can call “EFQM excellence model” as a transition from the great number of different models and approaches to unity in context of organizational improvement and excellence.Doing self assessment to find areas for improvement (AFIs) is the most important applications of this model. Organizations specially those ones which are on lower levels of total quality management will encounter lots of AF...

Uncountably many bounded positive solutions for a second order nonlinear neutral delay partial difference equation

In this paper we consider the second order nonlinear neutral delay partial difference equation $Delta_nDelta_mbig(x_{m,n}+a_{m,n}x_{m-k,n-l}big)+ fbig(m,n,x_{m-tau,n-sigma}big)=b_{m,n}, mgeq m_{0},, ngeq n_{0}.$Under suitable conditions, by making use of the Banach fixed point theorem, we show the existence of uncountably many bounded positive solutions for the above partial difference equation...