Issue Date	Title	Author(s)
2021	Ancient solutions of the homogeneous Ricci ow on ag manifolds	Anastassiou, S.; Chrysikos, I.; University of Patras. Greece; University of Hradec Králové. Czech Republic
2021	Cone asymptotes of convex sets	Soltan, V.; George Mason University. USA
2021	Stability of some essential B-spectra of pencil operators and application	Ben Ali, A.; Boudhief, M.; Moalla, N.; University of Sfax. Tunisia
2021	Hurwitz components of groups with socle PSL (3; q)	Salih, H.M. Mohammed; Soran University. Iraq
2021	Free (rational) derivation	Schrempf, K.; Austrian Academy of Sciences. Austrian
2021	Structure and bimodules of simple Hom-alternative algebras	Attan, S.; Université d'Abomey-Calavi. Benin