Institution: | [1]Department of Mathematics, Institute of Mathematics, University of Rzeszdw, ul. Rejtana 16A, 35-310 Rzeszdw, Poland [2]School of Advanced Sciences, VIT University, Vellore - 632014, India [3]Department of Mathematics, Rzeszow University of Technology, ul. W. Pola 2, 35-959 Rzeszsw, Poland |