Prof. Dr. Tahir Cagin, USA, cancelled due to illness
Prof. Dr. S. Habib Mazharimousavi, North Cyprus, Title of the talk "Thin-shell formalism in general relativity"
Prof.Dr. Ljubisa D.R. Kocinac, Serbia Title of the talk "Some new star selection properties"
Prof. Dr. Ekrem SAVAS, Turkey Title of the talk "Invariant mean and matrix transformation"
Prof. Dr. Robin Harte, Ireland Title of the talk "Spectral disjointness"