Updates in reverse chronological order

Below we provide information on new entries, starting on 2020-07-17.

Linear Block Codes

GF(2)

2020-10-14
puncturing [240,21,104]2 at specific positions:
[208,21,81]2, [210,21,82]2, [213,21,84]2, [215,21,85]2, [218,21,87]2, [220,21,88]2, [223,21,90]2, [226,21,92]2, [229,21,94]2,
24 derived codes
2020-10-14
applying Construction X to Goppa codes of length 240:
[254,22,106]2, [249,21,106]2,
6 derived codes
2020-10-14
Goppa code [240,21,104]2, contributed by Jan L. Carrasquillo Lopez, Axel O. Gomez Flores, Fernando Pinero, and Christopher Soto
28 derived codes

GF(3)

GF(4)

2020-09-29
quasicyclic code [88,45,21]4 from a skew-cyclic code, contributed by Padmapani Seneviratne
1 derived code
2020-09-23
code [109,63,28]4
via Construction X from constacyclic codes
9 derived codes
2020-08-31
constacyclic code [105,63,18]4
12 derived codes
2020-08-23
quasicyclic code from a skew-cyclic code, contributed by Padmapani Seneviratne, minimum distance computed by Markus Grassl:
[96,49,22]4
2 derived codes
2020-08-21
code [109,48,28]4
via Construction X from constacyclic codes
4 derived codes
2020-08-12
constacyclic code [105,45,28]4
6 derived codes
2020-08-09
constacyclic code [105,60,20]4
25 derived codes
2020-08-05
quasicyclic code from a skew-cyclic code, contributed by Padmapani Seneviratne:
[72,36,29]4
6 derived codes
2020-08-03
codes [98,42,27]4, [101,42,28]4 using Construction X
2 derived codes
2020-08-03
quasicyclic code [96,41,27]4
code [98,41,28]4 using Construction X
7 derived codes
2020-07-29
code [97,40,28]4 using Construction X
code [97,45,25]4 using Construction X
code [99,46,25]4 using Construction XX
2020-07-28
quasicyclic code [96,44,25]4
code [98,40,28]4 using Construction X
2 derived codes
2020-07-27
quasicyclic codes from skew-cyclic codes, contributed by Padmapani Seneviratne:
[96,39,28]4, [96,40,27]4
2 derived codes
2020-07-24
quasicyclic code [96,43,26]4
code [98,44,26]4 using Construction X
14 derived codes in total
2020-07-18
cyclic code [113,42,36]4
63 derived codes
2020-07-17
quasicyclic codes from skew-cyclic codes, contributed by Padmapani Seneviratne:
[52,28,13]4, [56,22,20]4, [56,23,19]4, [56,29,15]4, [72,34,20]4, [72,35,19]4, [72,37,18]4, [72,38,17]4, [64,29,19]4
17 derived codes

GF(5)

GF(7)

GF(8)

GF(9)

Quantum Codes

qubit codes