TY - JOUR AU - Dammak, Jamel PY - 2017/04/24 Y2 - 2024/03/29 TI - Caracterisation des relations binaires finies d-demi-reconstructibles JF - Proyecciones (Antofagasta, On line) JA - Proyecciones (Antofagasta, On line) VL - 22 IS - 1 SE - DO - 10.4067/S0716-09172003000100003 UR - https://www.revistaproyecciones.cl/index.php/proyecciones/article/view/1492 SP - 31-62 AB - <p>Given a binary relation R of basis E, we define its dual R? by R? (x, y) = R(y, x). A relation R is self-dual if it is isomorphic to R? . A binary relation R0 is hemimorphic to R, if it is isomorphic to R or to R? . A binary relation R is d-half-reconstructible if it is determined by its restrictions of cardinality d, up to hemimorphism. In this paper we characterize the finite binary relations d-half-reconstructibile for every d ? {7, 8, 9, 10, 11}.</p> ER -