RT Journal Article T1 Contractions of Low-Dimensional Nilpotent Jordan Algebras A1 Ancochea Bermúdez, José María A1 Fresán, Javier A1 Margalef Bentabol, Juan AB In this article, we classify the laws of three-dimensional and four-dimensional nilpotent Jordan algebras over the field of complex numbers. We describe the irreducible components of their algebraic varieties and extend contractions and deformations among their isomorphism classes. In particular, we prove that 2 and 3 are irreducible and that 4 is the union of the Zariski closures of the orbits of two rigid Jordan algebras PB Taylor & Francis SN 0092-7872 YR 2011 FD 2011 LK https://hdl.handle.net/20.500.14352/43735 UL https://hdl.handle.net/20.500.14352/43735 LA eng DS Docta Complutense RD 7 abr 2025