Unicorn metrics with almost vanishing ${\bf H}$- and ${\bf \Xi}$-curvatures
Akbar TAYEBI, Tayebeh TABATABAEIFAR
Fethiye Müge SAKAR, Hatun Özlem GÜNEY
Elmira ASHPAZZADEH, Mehrdad LAKESTANI, Mohsen RAZZAGHI
Nawel ARRAR, Natalia DJELLAB, Jean-bernard BAILLON