Resumen: A new proposal for the notion of spacetime in a relativistic generalization of special relativity based on a modification of the composition law of momenta is presented. Locality of interactions is the principle which defines the spacetime structure for a system of particles. The formulation based on kappa-Poincare Hopf algebra is shown to be contained in this framework as a particular example. Idioma: Inglés DOI: 10.1103/PhysRevD.97.064025 Año: 2018 Publicado en: PHYSICAL REVIEW D 97, 6 (2018), 064025 [12 pp] ISSN: 2470-0010 Factor impacto JCR: 4.368 (2018) Categ. JCR: ASTRONOMY & ASTROPHYSICS rank: 17 / 69 = 0.246 (2018) - Q1 - T1 Categ. JCR: PHYSICS, PARTICLES & FIELDS rank: 7 / 29 = 0.241 (2018) - Q1 - T1 Factor impacto SCIMAGO: 1.703 - Physics and Astronomy (miscellaneous) (Q1)