Three-Dimensional CR Submanifolds in $S^6(1)$ with Umbilical Direction Normal to $\mathcal{D}_3$

Miroslava ANTİC, Djordje KOCİC

The Deformation of an $(\alpha, \beta)$-Metric

Laurian-loan PISCORAN, Najafi BEHZAD, Cătălin BARBU, Tabatabaeifar TAYEBEH