SAP is an open access publisher of journals covering a wide range of academic disciplines.
Applied Mathematics is an open access, peer-reviewed scientific journal that publishes original articles, critical reviews, research notes, debate and short reports in all areas of applied mathematics.
Assistant Professor, University of Business and EnterpriseDept. of Social and Tech. Sci., Faculty of Econ.Akademicka 1227-400 Ostrowiec Świętokrzyski POLAND, Poland
Functional Equations and Inequalities