J. Rojo

activity

20182026

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math.RA2025

8-dimensional 2-step nilpotent Lie algebras over algebraically closed fields of char $\neq = 2, 3$

Giovanni Bazzoni, Juan Rojo

We provide a self contained, elementary, and geometrically-flavored classification of $8$ -dimensional $2$ -step nilpotent Lie algebras over algebraically closed fields of characteri…

math.SG2025

Constructions of symplectic surfaces in symplectic 4-manifolds with transversal intersections

Vicente Muñoz, Juan Rojo

In the breakthrough paper [V. Muñoz, A Smale-Barden manifold admitting K-contact but not Sasakian structure, 2024, 10.4171/JEMS/1496], it is constructed the first example of a simp…

8-dimensional 2-step nilpotent Lie algebras over algebraically closed fields of char =2,3

Constructions of symplectic surfaces in symplectic 4-manifolds with transversal intersections

8-dimensional 2-step nilpotent Lie algebras over algebraically closed fields of char $\neq = 2, 3$