**About the Editor**

**Gabriel-Eduard Vˆılcu** (Professor) obtained his Ph.D. in Mathematics at the University of Bucharest, Romania, in 2007. He is currently a full professor at the Petroleum-Gas University of Ploies,ti and also a senior researcher at the Research Center in Geometry, Topology and Algebra, at the Faculty of Mathematics and Computer Science, University of Bucharest. His main research interest is differential geometry and its applications. He has authored more than 70 articles in several renowned international journals and conference proceedings, and has also written and edited books in this field.
