Los puntos clave no están disponibles para este artículo en este momento.
Extended structures consisting of walls bounded by strings appear in some unified gauge theories. The Spin (10) grand-unified-theory model provides the simplest example, provided the symmetry breaking proceeds via SU (4) (2) (2). It is shown that the presence of such structures may cause conflict with standard cosmology.
Kibble et al. (Thu,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: