eng Science and Education Publishing Journal of Mathematical Sciences and Applications 2333-8792 2015-10-30 3 2 22 24 10.12691/jmsa-3-2-1 JMSA2015321 article Tamer Firat 1 ?ule Ayar ?zbal sule.ayar@yasar.edu.tr 1 Department of Mathematics, Faculty of Science and Letter, Ya?ar University, Izmir, Turkey In this study, we introduce the notion of symmetric bimultipliers in d-algebras and investigate some related properties. Among others kernels and sets of fixed points of a d-algebra are characterized by symmetric bi-multipliers. http://pubs.sciepub.com/jmsa/3/2/1/jmsa-3-2-1.pdf d- algebras multipliers fixed set kernel