RT Journal Article T1 Spin-harmonic structures and nilmanifolds A1 Bazzoni, Giovanni A1 Martín-Merchán, Lucía A1 Muñoz, Vicente AB We introduce spin-harmonic structures, a class of geometric structures on Riemannian manifolds of low dimension which are defined by a harmonic unitary spinor. Such structures are related to SU(2) (dim = 4, 5), SU(3) (dim = 6) and G2 (dim = 7) structures; in dimension 8, a spin-harmonic structure is equivalent to a balanced Spin(7) structure. As an application, we obtain examples of compact 8-manifolds endowed with non-integrable Spin(7) structures of balanced type. YR 2022 FD 2022 LK https://hdl.handle.net/20.500.14352/71669 UL https://hdl.handle.net/20.500.14352/71669 LA eng NO Ministerio de Economía y Competitividad (MINECO) NO Ministerio de Educación, Cultura y Deporte DS Docta Complutense RD 10 abr 2025