Details for entry \(A_4(9,6)\)

Lower bounds

• ef_computation ( show
  [(0, 1, 2, 3), (0, 4, 5, 6), (2, 3, 5, 6, 7, 8), (1, 4, 7, 8)]
  ) : 1048642
• cdc_lower_bound ( ) : 1048641
• improved_cdc_lower_bound ( ) : 1048641
• layer_construction ( ) : 1048641
• echelon_ferrers ( show
  optimal [(0, 1, 2, 3), (0, 3, 5, 6, 7, 8), (1, 4, 5, 6), (2, 4, 7, 8)] (if conjecture about Ferrers Diagram Rank-Metric Codes is true: 1048642 with optimal [(0, 1, 2, 3), (0, 4, 5, 6), (1, 4, 7, 8), (2, 3, 5, 6, 7, 8)])
  ) : 1048594
• cdc_average_argument ( ) : 2047
• gilbert_varshamov ( ) : 272
• trivial_4 ( ) : 2
• trivial_2 ( ) : 0

Upper bounds

• heinlein_ihringer_semidefinite_programming ( ) : 1067796
• relax_d ( ) : 2132180
• special_improved_cdc_upper_bound ( ) : 2132180
• improved_cdc_upper_bound ( ) : 2132182
• cdc_upper_bound ( ) : 2132186
• trivial_3 ( ) : 3387887032202

Do you have better bounds?