TY  - JOUR 
AU  - Torres Santaella, José Gabriel
PY  - 2021
UR  - http://hdl.handle.net/10481/70214
AB  - These notes introduce Riemannian apparent horizons
based on the book [Lee19]. The Riemannian viewpoint might be
extended in future works.
LA  - eng
TI  - Riemannian apparent horizon
ER  -