Details for entry \(A_2(9,5)\)

Lower bounds

• cdc_average_argument ( ) : 1996
• ef_computation ( show
  [(0, 1, 2, 3), (0, 1, 4, 6, 7), (3, 4, 5), (1, 2, 5, 6, 8), (0, 2, 4, 5, 7, 8), (3, 6, 7, 8)]
  ) : 1055
• echelon_ferrers ( show
  not optimal [(0, 1, 2, 3, 4), (0, 1, 5, 6), (0, 4, 5, 7, 8), (1, 2, 4, 6, 7, 8), (2, 3, 5, 8), (3, 6, 7)] (if conjecture about Ferrers Diagram Rank-Metric Codes is true: 1055 with not optimal [(0, 1, 2, 3, 4), (0, 1, 2, 6, 7, 8), (0, 3, 5, 6), (1, 4, 5, 8), (2, 5, 7), (3, 4, 6, 7, 8)])
  ) : 1047
• improved_cdc_lower_bound ( ) : 1034
• layer_construction ( ) : 1034
• cdc_lower_bound ( ) : 1033
• gilbert_varshamov ( ) : 61
• trivial_4 ( ) : 2
• trivial_2 ( ) : 0

Upper bounds

• Etzion_Vardy_ilp ( ) : 2458
• heinlein_ihringer_semidefinite_programming ( ) : 2458
• johnson_MDC_Lemma_4 ( ) : 2458
• special_improved_cdc_upper_bound ( ) : 2458
• Ahlswede_Aydinian_ilp ( ) : 2460
• improved_cdc_upper_bound ( ) : 2460
• cdc_upper_bound ( ) : 2464
• semidefinite_programming ( ) : 2485
• relax_d ( ) : 53710
• trivial_3 ( ) : 8283458

Do you have better bounds?