| 2009 |
|---|
| 77 | EE | Masaaki Harada,
Akihiro Munemasa:
There exists no self-dual [24, 12, 10] code over \mathbb F5{{\mathbb F}_5}.
Des. Codes Cryptography 52(1): 125-127 (2009) |
| 2008 |
|---|
| 76 | EE | Masaaki Harada,
Akihiro Munemasa:
There exists no self-dual [24,12,10] code over F5
CoRR abs/0809.0733: (2008) |
| 75 | EE | T. Aaron Gulliver,
Masaaki Harada:
New Nonbinary Self-Dual Codes.
IEEE Transactions on Information Theory 54(1): 415-417 (2008) |
| 74 | EE | Masaaki Harada,
Keiji Taniguchi:
Performance Analysis of M-ary Orthogonal Code Shift Keying in Fading Channels.
IEICE Transactions 91-B(2): 673-676 (2008) |
| 2007 |
|---|
| 73 | EE | Naoki Chigira,
Masaaki Harada,
Masaaki Kitazume:
Extremal self-dual codes of length 64 through neighbors and covering radii.
Des. Codes Cryptography 42(1): 93-101 (2007) |
| 72 | EE | Hiroaki Nakazima,
Masaaki Harada:
Performance Improvement of M-ary CSK by Using a Code Set Having Low Auto- and Cross-Correlation Properties in Multipath Fading Channels.
IEICE Transactions 90-B(6): 1532-1534 (2007) |
| 2006 |
|---|
| 71 | EE | Masaaki Harada:
Self-Orthogonal 3-(56, 12, 65) Designs and Extremal Doubly-Even Self-Dual Codes of Length 56.
Des. Codes Cryptography 38(1): 5-16 (2006) |
| 70 | EE | T. Aaron Gulliver,
Masaaki Harada:
Classification of extremal double circulant self-dual codes of lengths 74-88.
Discrete Mathematics 306(17): 2064-2072 (2006) |
| 69 | EE | Masaaki Harada,
Akihiro Munemasa:
Some restrictions on weight enumerators of singly even self-dual codes.
IEEE Transactions on Information Theory 52(3): 1266-1269 (2006) |
| 2005 |
|---|
| 68 | EE | Masaaki Harada,
Clement W. H. Lam,
Vladimir D. Tonchev:
Symmetric (4,4)-Nets and Generalized Hadamard Matrices Over Groups of Order 4.
Des. Codes Cryptography 34(1): 71-87 (2005) |
| 67 | EE | Masaaki Harada:
Remark on a 5-Design Related to a Putative Extremal Doubly-Even Self-Dual [96, 48, 20] Code.
Des. Codes Cryptography 37(2): 355-358 (2005) |
| 66 | EE | T. Aaron Gulliver,
Masaaki Harada,
Takuji Nishimura,
Patric R. J. Östergård:
Near-Extremal Formally Self-Dual Even Codes of Lengths 24 and 32.
Des. Codes Cryptography 37(3): 465-471 (2005) |
| 65 | EE | Masaaki Harada,
Masaaki Kitazume,
Akihiro Munemasa,
Boris Venkov:
On some self-dual codes and unimodular lattices in dimension 48.
Eur. J. Comb. 26(5): 543-557 (2005) |
| 2004 |
|---|
| 64 | EE | T. Aaron Gulliver,
Masaaki Harada:
On the Minimum Weight of Codes over F5 Constructed from Certain Conference Matrices.
Des. Codes Cryptography 31(2): 139-145 (2004) |
| 63 | EE | Masaaki Harada,
Michio Ozeki,
Kenichiro Tanabe:
On the Covering Radius of Ternary Extremal Self-Dual Codes.
Des. Codes Cryptography 33(2): 149-158 (2004) |
| 62 | EE | Makoto Araya,
Masaaki Harada:
MDS codes over F9 related to the ternary Golay code.
Discrete Mathematics 282(1-3): 233-237 (2004) |
| 61 | EE | T. Aaron Gulliver,
Masaaki Harada,
Jon-Lark Kim:
Erratum to "Construction of new extremal self-dual codes" [Discrete Mathematics 263 (2003) 81-91].
Discrete Mathematics 289(1-3): 207- (2004) |
| 60 | | Koichi Betsumiya,
Masaaki Harada:
Optimal self-dual codes over F2*F2 with respect to the Hamming weight.
IEEE Transactions on Information Theory 50(2): 356-358 (2004) |
| 59 | EE | Masaaki Harada,
Masaaki Kitazume,
Akihiro Munemasa:
On a 5-design related to an extremal doubly even self-dual code of length 72.
J. Comb. Theory, Ser. A 107(1): 143-146 (2004) |
| 2003 |
|---|
| 58 | EE | Radinka Dontcheva,
Masaaki Harada:
Some Extremal Self-Dual Codes with an Automorphism of Order 7.
Appl. Algebra Eng. Commun. Comput. 14(2): 75-79 (2003) |
| 57 | EE | Koichi Betsumiya,
Masaaki Harada:
Formally Self-Dual Codes Related to Type II Codes.
Appl. Algebra Eng. Commun. Comput. 14(2): 81-88 (2003) |
| 56 | | Stefka Bouyuklieva,
Masaaki Harada:
Extremal Self-Dual [50, 25, 10] Codes with Automorphisms of Order 3 and Quasi-Symmetric 2-(49, 9, 6) Designs.
Des. Codes Cryptography 28(2): 163-169 (2003) |
| 55 | | Koichi Betsumiya,
T. Aaron Gulliver,
Masaaki Harada:
Extremal Self-Dual Codes over F2 × F2.
Des. Codes Cryptography 28(2): 171-186 (2003) |
| 54 | EE | Koichi Betsumiya,
Stelios Georgiou,
T. Aaron Gulliver,
Masaaki Harada,
Christos Koukouvinos:
On self-dual codes over some prime fields.
Discrete Mathematics 262(1-3): 37-58 (2003) |
| 53 | EE | T. Aaron Gulliver,
Masaaki Harada,
Jon-Lark Kim:
Construction of new extremal self-dual codes.
Discrete Mathematics 263(1-3): 81-91 (2003) |
| 52 | EE | Masaaki Harada,
Vladimir D. Tonchev:
Self-orthogonal Codes from Symmetric Designs with Fixed-point-free Auto-morphisms.
Discrete Mathematics 264(1-3): 81-90 (2003) |
| 51 | EE | Masaaki Harada,
Patric R. J. Östergård:
On the Classification of Self-Dual Codes over F5.
Graphs and Combinatorics 19(2): 203-214 (2003) |
| 2002 |
|---|
| 50 | | Stelios Georgiou,
Masaaki Harada,
Christos Koukouvinos:
Orthogonal Designs and Type II Codes over Z2k.
Des. Codes Cryptography 25(2): 163-174 (2002) |
| 49 | EE | Masaaki Harada:
Self-dual Z4-codes and Hadamard matrices.
Discrete Mathematics 245(1-3): 273-278 (2002) |
| 48 | EE | Stefka Bouyuklieva,
Masaaki Harada:
On Type IV self-dual codes over Z4.
Discrete Mathematics 247(1-3): 25-50 (2002) |
| 47 | EE | Masaaki Harada,
Patric R. J. Östergård:
Self-dual and maximal self-orthogonal codes over F7.
Discrete Mathematics 256(1-2): 471-477 (2002) |
| 46 | EE | Masaaki Harada,
Masaaki Kitazume:
Z6-Code Constructions of the Leech Lattice and the Niemeier Lattices.
Eur. J. Comb. 23(5): 573-581 (2002) |
| 45 | EE | Masaaki Harada,
Patric R. J. Östergård:
Classification of Extremal Formally Self-Dual Even Codes of Length 22.
Graphs and Combinatorics 18(3): 507-516 (2002) |
| 44 | | Radinka Dontcheva,
Masaaki Harada:
New extremal self-dual codes of length 62 and related extremal self-dual codes.
IEEE Transactions on Information Theory 48(7): 2060-2064 (2002) |
| 2001 |
|---|
| 43 | EE | Koichi Betsumiya,
Masaaki Harada,
Akihiro Munemasa:
Type II Codes over F2r.
AAECC 2001: 102-111 |
| 42 | EE | T. Aaron Gulliver,
Masaaki Harada:
Optimal Double Circulant Z4-Codes.
AAECC 2001: 122-128 |
| 41 | EE | Steven T. Dougherty,
Masaaki Harada,
Manabu Oura:
Note on the g-fold Joint Weight Enumerators of Self-Dual Codes over Zk.
Appl. Algebra Eng. Commun. Comput. 11(6): 437-445 (2001) |
| 40 | | T. Aaron Gulliver,
Masaaki Harada:
Codes over and Improvements to the Bounds on Ternary Linear Codes.
Des. Codes Cryptography 22(1): 89-96 (2001) |
| 39 | | Koichi Betsumiya,
Masaaki Harada:
Binary Optimal Odd Formally Self-Dual Codes.
Des. Codes Cryptography 23(1): 11-22 (2001) |
| 38 | | Koichi Betsumiya,
Masaaki Harada:
Classification of Formally Self-Dual Even Codes of Lengths up to 16.
Des. Codes Cryptography 23(3): 325-332 (2001) |
| 37 | EE | Masaaki Harada:
An extremal ternary self-dual [28, 14, 9] code with a trivial automorphism group.
Discrete Mathematics 239(1-3): 121-125 (2001) |
| 36 | | Koichi Betsumiya,
T. Aaron Gulliver,
Masaaki Harada,
Akihiro Munemasa:
On type II codes over F4.
IEEE Transactions on Information Theory 47(6): 2242-2248 (2001) |
| 35 | EE | T. Aaron Gulliver,
Masaaki Harada:
Orthogonal Frames in the Leech Lattice and a Type II Code over Integer 22.
J. Comb. Theory, Ser. A 95(1): 185-188 (2001) |
| 2000 |
|---|
| 34 | EE | Steven T. Dougherty,
T. Aaron Gulliver,
Masaaki Harada:
Optimal Formally Self-Dual Codes over F5 and F7.
Appl. Algebra Eng. Commun. Comput. 10(3): 227-236 (2000) |
| 33 | | T. Aaron Gulliver,
Masaaki Harada:
Double Circulant Self-Dual Codes over GF(5).
Ars Comb. 56: (2000) |
| 32 | EE | Masaaki Harada,
Michio Ozeki:
Extremal self-dual codes with the smallest covering radius.
Discrete Mathematics 215: 271-281 (2000) |
| 31 | EE | Steven T. Dougherty,
Masaaki Harada,
Patrick Solé:
Shadow lattices and shadow codes.
Discrete Mathematics 219(1-3): 49-64 (2000) |
| 30 | EE | Masaaki Harada:
On the existence of extremal Type II codes over Z6.
Discrete Mathematics 223(1-3): 373-378 (2000) |
| 29 | EE | Masaaki Harada,
Masaaki Kitazume:
Z4-Code Constructions for the Niemeier Lattices and their Embeddings in the Leech Lattice.
Eur. J. Comb. 21(4): 473-485 (2000) |
| 1999 |
|---|
| 28 | | Koichi Betsumiya,
T. Aaron Gulliver,
Masaaki Harada:
Binary Optimal Linear Rate 1/2 Codes.
AAECC 1999: 462-471 |
| 27 | | Philippe Gaborit,
Masaaki Harada:
Construction of Extremal Type II Codes over Z.
Des. Codes Cryptography 16(3): 257-269 (1999) |
| 26 | EE | T. Aaron Gulliver,
Masaaki Harada:
Extremal double circulant Type II codes over Z4 and construction of 5-(24, 10, 36) designs.
Discrete Mathematics 194(1-3): 129-137 (1999) |
| 25 | EE | Steven T. Dougherty,
T. Aaron Gulliver,
Masaaki Harada:
Optimal ternary formally self-dual codes.
Discrete Mathematics 196(1-3): 117-135 (1999) |
| 24 | EE | Alexis Bonnecaze,
Philippe Gaborit,
Masaaki Harada,
Masaaki Kitazume,
Patrick Solé:
Niemeier lattices and Type II codes over Z4.
Discrete Mathematics 205(1-3): 1-21 (1999) |
| 23 | | Steven T. Dougherty,
Philippe Gaborit,
Masaaki Harada,
Patrick Solé:
Type II Codes Over F2 + u F2.
IEEE Transactions on Information Theory 45(1): 32-45 (1999) |
| 22 | | T. Aaron Gulliver,
Masaaki Harada:
Codes of Lengths 120 and 136 Meeting the Grey-Rankin Bound and Quasi-Symmetric Designs.
IEEE Transactions on Information Theory 45(2): 703-706 (1999) |
| 21 | | Eiichi Bannai,
Steven T. Dougherty,
Masaaki Harada,
Manabu Oura:
Type II Codes, Even Unimodular Lattices, and Invariant Rings.
IEEE Transactions on Information Theory 45(4): 1194-1205 (1999) |
| 20 | | Masaaki Harada:
Construction of an Extremal Self-Dual Code of Length 62.
IEEE Transactions on Information Theory 45(4): 1232-1233 (1999) |
| 19 | | Steven T. Dougherty,
Masaaki Harada:
New extremal self-dual codes of length 68.
IEEE Transactions on Information Theory 45(6): 2133-2136 (1999) |
| 18 | | Toru Aoki,
Philippe Gaborit,
Masaaki Harada,
Michio Ozeki,
Patrick Solé:
On the covering radius of Z4-codes and their lattices.
IEEE Transactions on Information Theory 45(6): 2162-2168 (1999) |
| 17 | | Steven T. Dougherty,
Philippe Gaborit,
Masaaki Harada,
Akihiro Munemasa,
Patrick Solé:
Type IV self-dual codes over rings.
IEEE Transactions on Information Theory 45(7): 2345-2360 (1999) |
| 16 | | T. Aaron Gulliver,
Masaaki Harada:
Construction of optimal Type IV self-dual codes over F2+µF2.
IEEE Transactions on Information Theory 45(7): 2520-2521 (1999) |
| 15 | | Masaaki Harada:
New extremal self-dual codes of lengths 36 and 38.
IEEE Transactions on Information Theory 45(7): 2541-2543 (1999) |
| 14 | EE | T. Aaron Gulliver,
Masaaki Harada:
An Optimal Unimodular Lattice in Dimension 39.
J. Comb. Theory, Ser. A 88(1): 158-161 (1999) |
| 1998 |
|---|
| 13 | | T. Aaron Gulliver,
Masaaki Harada:
Classification of Extremal Double Circulant Self-Dual Codes of Lengths 64 to 72.
Des. Codes Cryptography 13(3): 257-269 (1998) |
| 12 | | Masaaki Harada:
New Extremal Type II Codes over Z4.
Des. Codes Cryptography 13(3): 271-284 (1998) |
| 11 | EE | Masaaki Harada,
T. Aaron Gulliver,
Hitoshi Kaneta:
Classification of extremal double-circulant self-dual codes of length up to 62.
Discrete Mathematics 188(1-3): 127-136 (1998) |
| 10 | | T. Aaron Gulliver,
Masaaki Harada:
Double Circulant Self-Dual Codes Over Z2k.
IEEE Transactions on Information Theory 44(7): 3105-3123 (1998) |
| 1997 |
|---|
| 9 | | T. Aaron Gulliver,
Masaaki Harada:
Certain Self-Dual Codes over Z4 and the Odd Leech Lattice.
AAECC 1997: 130-137 |
| 8 | | Masaaki Harada:
Weighing Matrics and Self-Dual Codes.
Ars Comb. 47: (1997) |
| 7 | | T. Aaron Gulliver,
Masaaki Harada:
Classification of Extremal Double Circulant Formally Self-Dual Even Codes.
Des. Codes Cryptography 11(1): 23-35 (1997) |
| 6 | | T. Aaron Gulliver,
Masaaki Harada:
Weight Enumerators of Double Circulant Codes and New Extremal Self-Dual Codes.
Des. Codes Cryptography 11(2): 141-150 (1997) |
| 5 | | Steven T. Dougherty,
T. Aaron Gulliver,
Masaaki Harada:
Extremal binary self-dual codes.
IEEE Transactions on Information Theory 43(6): 2036-2047 (1997) |
| 1996 |
|---|
| 4 | | Masaaki Harada:
Existence of New Extremal Doubly-Even Codes and Extremal Singly-Even Codes.
Des. Codes Cryptography 8(3): 273-283 (1996) |
| 3 | | T. Aaron Gulliver,
Masaaki Harada:
Weight enumerators of extremal singly-even [60, 30, 12] codes.
IEEE Transactions on Information Theory 42(2): 658-659 (1996) |
| 1995 |
|---|
| 2 | | Masaaki Harada,
Vladimir D. Tonchev:
Singly-Even Self-Dual Codes and Hadamard Matrices.
AAECC 1995: 279-284 |
| 1 | | Masaaki Harada,
Hiroshi Kimura:
New Extremal Doubly-Even [64, 32, 12] Codes.
Des. Codes Cryptography 6(2): 91-96 (1995) |
