MATHEMATICS AND INFORMATICS
Chairmen: Assoc. Prof. Dobrin Ganchev, PhD
Building 1, Hall 1326

DYNAMIC ARRAYS IN MS EXCEL FOR DATA PROCESSING AND ANALYSIS IN INFORMATION SYSTEMS
Valentina P. Todorova-Lazarova
Technical University of Gabrovo, Gabrovo, Bulgaria

ON THE GENERALIZED INVERSES OF LINEAR COMBINATIONS OF GENERALIZED AND HYPERGENERALIZED PROJECTORS
Marina Tošić
University of Priština in Kosovska Mitrovica, Faculty of Sciences and Mathematics, Kosovska Mitrovica, Republic of Serbia

ON THE NONSINGULARITY OF LINEAR COMBINATIONS OF GENERALIZED PROJECTORS
Marina Tošić
University of Priština in Kosovska Mitrovica, Faculty of Sciences and Mathematics, Kosovska Mitrovica, Republic of Serbia