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News
Oct. 2, 2018
We have added the updated semidefinite programming bounds from
https://arxiv.org/abs/1809.09352
.
more
Oct. 1, 2018
We have added the MDC bounds from
https://arxiv.org/abs/1808.03580
.
more
Feb. 16, 2018
We have added files for all lifted maximum rank metric codes with cardinality at most 10000.
more
Jan. 15, 2018
We added the paper
Heinlein2018
more
More files could be added:
C_2_10_6_5_32923.magma.zip
,
C_2_11_6_4_16717.magma.zip
,
C_2_11_6_4_16717.magma.zip
,
C_2_11_6_5_263478.magma.zip
,
C_2_12_6_4_66839.magma.zip
,
C_2_12_6_5_2105077.magma.zip
,
C_2_13_6_4_267897.magma.zip
Dec. 12, 2017
Second version of the manual
more
The manual can be found
here
.
Nov. 17, 2017
A
2
(
8
,
6
;
4
)
=
257
is optimal and has been classified with 2 isomorphism types.
more
We added the paper
HeinleinHonoldKiermaierKurzWassermann2017
. More details can be found:
A
2
(
8
,
6
;
4
)
.
Nov. 1, 2017
We added the paper
HeinleinHonoldKiermaierKurzWassermann2017
more
Improvment of paper
HeinleinKurz2017
.
Aug. 1, 2017
We added the paper
KiermaierKurz2017
more
April 12, 2017
The upper bound of
A
2
(
8
,
6
;
4
)
could be improved from 289 to 272. Added code for
A
2
(
8
,
3
)
≥
5687
.
more
More details can be found:
A
2
(
8
,
6
;
4
)
≤
272
and
A
2
(
8
,
3
)
≥
5687
.
March 23, 2017
Added codes for
A
2
(
7
,
3
)
≥
614
,
A
2
(
8
,
4
;
3
)
≥
1326
,
A
2
(
8
,
4
;
4
)
≥
4801
,
A
2
(
9
,
4
;
3
)
≥
5986
,
A
2
(
10
,
4
;
3
)
≥
23870
, and
A
2
(
11
,
4
;
3
)
≥
97526
more
More details can be found
A
2
(
7
,
3
)
≥
614
,
A
2
(
8
,
4
;
3
)
≥
1326
,
A
2
(
8
,
4
;
4
)
≥
4801
,
A
2
(
9
,
4
;
3
)
≥
5986
,
A
2
(
10
,
4
;
3
)
≥
23870
, and
A
2
(
11
,
4
;
3
)
≥
97526
.
Dec. 9, 2016
624 nonisomorphic codes have been added for
A
2
(
8
,
6
;
3
)
=
34
more
More details can be found
here
.
July 11, 2016
New upper bounds for partial spreads by Esmeralda Nastase and Papa Sissokho implemented
more
We added the paper
NastaseSissokho2017
.
June 28, 2016
New upper bounds for partial spreads implemented
more
We added the paper
Kurz20173
. Exemplary improvements:
A
2
(
11
,
8
;
4
)
≤
132
A
2
(
15
,
8
;
4
)
≤
2180
A
2
(
16
,
12
;
6
)
≤
1032
A
2
(
17
,
12
;
6
)
≤
2066
A
2
(
19
,
14
;
7
)
≤
4113
A
2
(
19
,
8
;
4
)
≤
34948
A
3
(
15
,
12
;
6
)
≤
19695
A
3
(
17
,
14
;
7
)
≤
59060
A
3
(
19
,
16
;
8
)
≤
177157
A
4
(
10
,
8
;
4
)
≤
4103
A
4
(
14
,
8
;
4
)
≤
1052679
A
4
(
15
,
12
;
6
)
≤
262175
A
7
(
10
,
8
;
4
)
≤
117671
A
8
(
10
,
8
;
4
)
≤
262173
A
9
(
10
,
8
;
4
)
≤
531478
March 22, 2016
333
≤
A
2
(
7
,
4
;
3
)
more
By an exhaustive search of all symmetry groups that yield a code of size at least 329 we found:
333
≤
A
2
(
7
,
4
;
3
)
, see
HeinleinKiermaierKurzWassermann2017
Feb. 26, 2016
Statistics of the most effective lower and upper bounds introduced
more
We automatically rank each constraint in the
CDC
and
MDC
setting.
Feb. 7, 2016
Alexander Shishkin
contributed to the homepage
more
Many additional informations based on the multilevel construction added, e.g.,
A
2
(
11
,
6
;
4
)
,
A
2
(
11
,
4
;
4
)
,
A
2
(
11
,
4
;
5
)
, and
A
2
(
12
,
4
;
5
)
.
Feb. 6, 2016
Ivan David Molina Naizir
contributed to the homepage
more
Additional informations on cyclic codes for:
A
2
(
8
,
4
;
4
)
,
A
2
(
10
,
4
;
3
)
, and
A
2
(
10
,
10
;
5
)
.
Jan. 1, 2016
First version of the manual
more
The manual can be found
here
. The preferred way to cite this homepage can be found
here
.
Nov. 23, 2015
4173
≤
A
2
(
10
,
6
;
4
)
more
A corresponding code was found in the paper
HeinleinKurz20173
.