Julian Revalski graduated in Mathematics at the Sofia University “St. Kliment Ohridski” in 1981. In 1986, he became a Candidate in Mathematical Sciences (PhD degree) and obtained the degree Doctor of Sciences in 1997. He was elected Corresponding member of the Bulgarian Academy of Sciences in 2008, and became a Full member in 2015. His main topics of research include Operations Research (Optimization, Variational Analysis, Game Theory), Functional Analysis (Geometry of Banach spaces, Monotone Operators) and General Topology (Topological methods in Variational Analysis, Set-valued Mappings).

Julian Revalski has extensive international experience as a visiting researcher and visiting professor in many universities abroad, such as University of Genoa – Italy, University of Milan – Italy, Politecnico Milano – Italy, University of Waterloo – Canada, University of Athens – Greece, Humboldt University Berlin – Germany, University of Limoges – France, University of Montpellier II – France, University Paris VI – France, University Paris II (Panthéon-Assas) – France, University of the French West Indies, France, University of Chile – Santiago de Chile, IMCA – Lima, Peru, University of Havana, Cuba. He has been a Coordinator (Principle coordinator or coordinator on behalf of IMI-BAS) of 7 international research projects and a Coordinator of 5 national research projects with the National Fund for Scientific Research.

His academic career is devoted to the Institute of Mathematics and Informatics, where he has been working since 1986 and in 2001 was elected Full Professor. He was Director of the Institute in the period 2012-2016. Prof. Revalski was elected President of the Bulgarian Academy of Sciences in 2016 and served as President for two consecutive terms until the end of 2024. Julian Revalski served also as Vice-President of the European Academies Science Advisory Council (EUSAC) in the period 2021-2023. During the period 2013-2019 prof. Revalski was one of the architects and main driving forces of the creation of the International Center for Mathematical Sciences (ICMS-Sofia).

He took the responsibilities of Director of ICMS-Sofia in 2024.

Velichka Milousheva obtained her PhD degree in 2006 in the Institute of Mathematics and Informatics at the Bulgarian Academy of Sciences under the supervision of Prof. Georgi Ganchev. In 2018, she became a full professor in the Department of Analysis, Geometry and Topology at this institute. Currently, she is a Deputy Director of the Institute of Mathematics and Informatics responsible for the academic development, national, European and international projects and programmes. Her main research activities are in the field of Differential geometry of Riemannian manifolds, more precisely: geometry of Riemannian manifolds with two-dimensional distributions; hypersurfaces with involutive distributions; hypersurfaces of conullity two; geometry of surfaces and hypersurfaces in Euclidean and Minkowski spaces; local theory of surfaces in pseudo- Euclidean spaces with neutral metric; minimal and quasi-minimal surfaces in four-dimensionalpseudo-Euclidean spaces.

She is the author of more than 60 research papers. She has been a supervisor of 2 PhD students and 1 postdoctoral researcher. She was a speaker at 47 international conferences and seminars in Belgium, Bulgaria, Czech Republic, Italy, North Macedonia, Poland, Romania, Russia, Serbia, Turkey, USA.