**Editor-in-Chief:**

University of Kragujevac, Faculty of Science, Kragujevac, Serbia**Suzana Aleksić**,

**Associate Editors:**

**Tatjana Aleksić Lampert**, University of Kragujevac, Faculty of Science, Kragujevac, Serbia**Đorđe Baralić**, Mathematical Institute of the Serbian Academy of Sciences and Arts, Belgrade, Serbia**Dejan Bojović**, University of Kragujevac, Faculty of Science, Kragujevac, Serbia**Bojana Borovićanin**, University of Kragujevac, Faculty of Science, Kragujevac, Serbia**Nada Damljanović**, University of Kragujevac, Faculty of Technical Sciences, Čačak, Serbia**Slađana Dimitrijević**, University of Kragujevac, Faculty of Science, Kragujevac, Serbia**Jelena Ignjatović**, University of Niš, Faculty of Natural Sciences and Mathematics, Niš, Serbia**Boško Jovanović**, University of Belgrade, Faculty of Mathematics, Belgrade, Serbia**Emilija Nešović**, University of Kragujevac, Faculty of Science, Kragujevac, Serbia**Marko Petković**, University of Niš, Faculty of Natural Sciences and Mathematics, Niš, Serbia**Nenad Stojanović**, University of Kragujevac, Faculty of Science, Kragujevac, Serbia**Tatjana Tomović Mladenović**, University of Kragujevac, Faculty of Science, Kragujevac, Serbia**Milica Žigić**, University of Novi Sad, Faculty of Science, Novi Sad, Serbia

**Editorial Board:**

**Ravi P. Agarwal,**Department of Mathematics, Texas A&M University-Kingsville,Kingsville, TX, USA**Dragić Banković**, University of Kragujevac, Faculty of Science, Kragujevac, Serbia**Richard A. Brualdi**, University of Wisconsin–Madison, Mathematics Department, Madison, Wisconsin, USA**Bang-Yen Chen**, Michigan State University, Department of Mathematics, Michigan, USA**Claudio Cuevas**, Federal University of Pernambuco, Department of Mathematics, Recife, Brazil**Miroslav Ćirić**, University of Niš, Faculty of Natural Sciences and Mathematics, Niš, Serbia**Sever Dragomir**, Victoria University, School of Engineering & Science, Melbourne, Australia**Vladimir Dragović**, The University of Texas at Dallas, School of Natural Sciences and Mathematics, Dallas, Texas, USA and Mathematical Institute of the Serbian Academy of Sciences and Arts, Belgrade, Serbia**Paul Embrechts**, ETH Zurich, Department of Mathematics, Zurich, Switzerland**Ivan Gutman**, University of Kragujevac, Faculty of Science, Kragujevac, Serbia**Nebojša Ikodinović**, University of Belgrade, Faculty of Mathematics, Belgrade, Serbia**Mircea Ivan**, Technical University of Cluj-Napoca, Department of Mathematics, Cluj-Napoca, Romania**Sandi Klavžar**, University of Ljubljana, Faculty of Mathematics and Physics, Ljubljana, Slovenia**Giuseppe Mastroianni**, University of Basilicata, Department of Mathematics, Informatics and Economics, Potenza, Italy**Miodrag Mateljević**, University of Belgrade, Faculty of Mathematics, Belgrade, Serbia**Gradimir Milovanović**, Serbian Academy of Sciences and Arts, Belgrade, Serbia**Sotirios Notaris**, National and Kapodistrian University of Athens, Department of Mathematics, Athens, Greece**Miroslava Petrović-Torgašev**, University of Kragujevac, Faculty of Science, Kragujevac, Serbia**Stevan Pilipović**, University of Novi Sad, Faculty of Sciences, Novi Sad, Serbia**Juan Rada**, University of Antioquia, Institute of Mathematics, Medellin, Colombia**Stojan Radenović**, University of Belgrade, Faculty of Mechanical Engineering, Belgrade, Serbia**Lothar Reichel**, Kent State University, Department of Mathematical Sciences, Kent (OH), USA**Miodrag Spalević**, University of Belgrade, Faculty of Mechanical Engineering, Belgrade, Serbia**Hari Mohan Srivastava**, University of Victoria, Department of Mathematics and Statistics, Victoria, British Columbia, Canada**Marija Stanić,**University of Kragujevac, Faculty of Science, Kragujevac, Serbia**Kostadin Trenčevski**, Ss Cyril and Methodius University, Faculty of Natural Sciences and Mathematics, Skopje, Macedonia**Boban Veličković**, University of Paris 7, Department of Mathematics, Paris, France**Leopold Verstraelen**, Katholieke Universiteit Leuven, Department of Mathematics, Leuven, Belgium

**Technical Editor:**

**Tatjana Tomović Mladenović**, University of Kragujevac, Faculty of Science, Kragujevac, Serbia

**Former Editors-in-Chief**

**Ivan Gutman**, 2000**Dragi****ć Banković**, 2001-2005**Miodrag Spalević**, 2006-2007**Miroslava Petrović-Torgašev**, 2008-2014**Marija Stanić**, 2015-2018