Name Behzad Esmaili Affliation Minister of Education Degree — Academic Rank - WebSite — Email — Article Presentation Project Book Thesis Speech Innovation TitleJournal 1 On 1-index of Unstable Spacelike Hypersurfaces in Pseudo-Euclidean Spheres Sahand Communications in Mathematical Analysis 18 (2021) 97-111 2 On the r-Stability Index of r-Maximal Closed Hypersurfaces in de Sitter Spaces Tamkang Journal of Mathematics 53 (2021) 1-11