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Author:
Masaaki Harada: [Publications] [Author Rank by year] [Co-authors] [Prefers] [Cites] [Cited by]

Publications of Author

  1. Koichi Betsumiya, T. Aaron Gulliver, Masaaki Harada
    Binary Optimal Linear Rate 1/2 Codes. [Citation Graph (0, 0)][DBLP]
    AAECC, 1999, pp:462-471 [Conf]
  2. Koichi Betsumiya, Masaaki Harada, Akihiro Munemasa
    Type II Codes over F2r. [Citation Graph (0, 0)][DBLP]
    AAECC, 2001, pp:102-111 [Conf]
  3. T. Aaron Gulliver, Masaaki Harada
    Optimal Double Circulant Z4-Codes. [Citation Graph (0, 0)][DBLP]
    AAECC, 2001, pp:122-128 [Conf]
  4. T. Aaron Gulliver, Masaaki Harada
    Certain Self-Dual Codes over Z4 and the Odd Leech Lattice. [Citation Graph (0, 0)][DBLP]
    AAECC, 1997, pp:130-137 [Conf]
  5. Masaaki Harada, Vladimir D. Tonchev
    Singly-Even Self-Dual Codes and Hadamard Matrices. [Citation Graph (0, 0)][DBLP]
    AAECC, 1995, pp:279-284 [Conf]
  6. Radinka Dontcheva, Masaaki Harada
    Some Extremal Self-Dual Codes with an Automorphism of Order 7. [Citation Graph (0, 0)][DBLP]
    Appl. Algebra Eng. Commun. Comput., 2003, v:14, n:2, pp:75-79 [Journal]
  7. Steven T. Dougherty, T. Aaron Gulliver, Masaaki Harada
    Optimal Formally Self-Dual Codes over F5 and F7. [Citation Graph (0, 0)][DBLP]
    Appl. Algebra Eng. Commun. Comput., 2000, v:10, n:3, pp:227-236 [Journal]
  8. Steven T. Dougherty, Masaaki Harada, Manabu Oura
    Note on the g-fold Joint Weight Enumerators of Self-Dual Codes over Zk. [Citation Graph (0, 0)][DBLP]
    Appl. Algebra Eng. Commun. Comput., 2001, v:11, n:6, pp:437-445 [Journal]
  9. Koichi Betsumiya, Masaaki Harada
    Formally Self-Dual Codes Related to Type II Codes. [Citation Graph (0, 0)][DBLP]
    Appl. Algebra Eng. Commun. Comput., 2003, v:14, n:2, pp:81-88 [Journal]
  10. T. Aaron Gulliver, Masaaki Harada
    Double Circulant Self-Dual Codes over GF(5). [Citation Graph (0, 0)][DBLP]
    Ars Comb., 2000, v:56, n:, pp:- [Journal]
  11. Masaaki Harada
    Weighing Matrics and Self-Dual Codes. [Citation Graph (0, 0)][DBLP]
    Ars Comb., 1997, v:47, n:, pp:- [Journal]
  12. Koichi Betsumiya, T. Aaron Gulliver, Masaaki Harada
    Extremal Self-Dual Codes over F2 × F2. [Citation Graph (0, 0)][DBLP]
    Des. Codes Cryptography, 2003, v:28, n:2, pp:171-186 [Journal]
  13. Koichi Betsumiya, Masaaki Harada
    Binary Optimal Odd Formally Self-Dual Codes. [Citation Graph (0, 0)][DBLP]
    Des. Codes Cryptography, 2001, v:23, n:1, pp:11-22 [Journal]
  14. Koichi Betsumiya, Masaaki Harada
    Classification of Formally Self-Dual Even Codes of Lengths up to 16. [Citation Graph (0, 0)][DBLP]
    Des. Codes Cryptography, 2001, v:23, n:3, pp:325-332 [Journal]
  15. Stefka Bouyuklieva, Masaaki Harada
    Extremal Self-Dual [50, 25, 10] Codes with Automorphisms of Order 3 and Quasi-Symmetric 2-(49, 9, 6) Designs. [Citation Graph (0, 0)][DBLP]
    Des. Codes Cryptography, 2003, v:28, n:2, pp:163-169 [Journal]
  16. Philippe Gaborit, Masaaki Harada
    Construction of Extremal Type II Codes over Z. [Citation Graph (0, 0)][DBLP]
    Des. Codes Cryptography, 1999, v:16, n:3, pp:257-269 [Journal]
  17. Stelios Georgiou, Masaaki Harada, Christos Koukouvinos
    Orthogonal Designs and Type II Codes over Z2k. [Citation Graph (0, 0)][DBLP]
    Des. Codes Cryptography, 2002, v:25, n:2, pp:163-174 [Journal]
  18. T. Aaron Gulliver, Masaaki Harada
    Codes over and Improvements to the Bounds on Ternary Linear Codes. [Citation Graph (0, 0)][DBLP]
    Des. Codes Cryptography, 2001, v:22, n:1, pp:89-96 [Journal]
  19. T. Aaron Gulliver, Masaaki Harada
    On the Minimum Weight of Codes over F5 Constructed from Certain Conference Matrices. [Citation Graph (0, 0)][DBLP]
    Des. Codes Cryptography, 2004, v:31, n:2, pp:139-145 [Journal]
  20. T. Aaron Gulliver, Masaaki Harada
    Classification of Extremal Double Circulant Formally Self-Dual Even Codes. [Citation Graph (0, 0)][DBLP]
    Des. Codes Cryptography, 1997, v:11, n:1, pp:23-35 [Journal]
  21. T. Aaron Gulliver, Masaaki Harada
    Weight Enumerators of Double Circulant Codes and New Extremal Self-Dual Codes. [Citation Graph (0, 0)][DBLP]
    Des. Codes Cryptography, 1997, v:11, n:2, pp:141-150 [Journal]
  22. T. Aaron Gulliver, Masaaki Harada
    Classification of Extremal Double Circulant Self-Dual Codes of Lengths 64 to 72. [Citation Graph (0, 0)][DBLP]
    Des. Codes Cryptography, 1998, v:13, n:3, pp:257-269 [Journal]
  23. T. Aaron Gulliver, Masaaki Harada, Takuji Nishimura, Patric R. J. Östergård
    Near-Extremal Formally Self-Dual Even Codes of Lengths 24 and 32. [Citation Graph (0, 0)][DBLP]
    Des. Codes Cryptography, 2005, v:37, n:3, pp:465-471 [Journal]
  24. Masaaki Harada
    Remark on a 5-Design Related to a Putative Extremal Doubly-Even Self-Dual [96, 48, 20] Code. [Citation Graph (0, 0)][DBLP]
    Des. Codes Cryptography, 2005, v:37, n:2, pp:355-358 [Journal]
  25. Masaaki Harada
    Self-Orthogonal 3-(56, 12, 65) Designs and Extremal Doubly-Even Self-Dual Codes of Length 56. [Citation Graph (0, 0)][DBLP]
    Des. Codes Cryptography, 2006, v:38, n:1, pp:5-16 [Journal]
  26. Masaaki Harada
    Existence of New Extremal Doubly-Even Codes and Extremal Singly-Even Codes. [Citation Graph (0, 0)][DBLP]
    Des. Codes Cryptography, 1996, v:8, n:3, pp:273-283 [Journal]
  27. Masaaki Harada
    New Extremal Type II Codes over Z4. [Citation Graph (0, 0)][DBLP]
    Des. Codes Cryptography, 1998, v:13, n:3, pp:271-284 [Journal]
  28. Masaaki Harada, Hiroshi Kimura
    New Extremal Doubly-Even [64, 32, 12] Codes. [Citation Graph (0, 0)][DBLP]
    Des. Codes Cryptography, 1995, v:6, n:2, pp:91-96 [Journal]
  29. Masaaki Harada, Clement W. H. Lam, Vladimir D. Tonchev
    Symmetric (4,4)-Nets and Generalized Hadamard Matrices Over Groups of Order 4. [Citation Graph (0, 0)][DBLP]
    Des. Codes Cryptography, 2005, v:34, n:1, pp:71-87 [Journal]
  30. Masaaki Harada, Michio Ozeki, Kenichiro Tanabe
    On the Covering Radius of Ternary Extremal Self-Dual Codes. [Citation Graph (0, 0)][DBLP]
    Des. Codes Cryptography, 2004, v:33, n:2, pp:149-158 [Journal]
  31. Naoki Chigira, Masaaki Harada, Masaaki Kitazume
    Extremal self-dual codes of length 64 through neighbors and covering radii. [Citation Graph (0, 0)][DBLP]
    Des. Codes Cryptography, 2007, v:42, n:1, pp:93-101 [Journal]
  32. Makoto Araya, Masaaki Harada
    MDS codes over F9 related to the ternary Golay code. [Citation Graph (0, 0)][DBLP]
    Discrete Mathematics, 2004, v:282, n:1-3, pp:233-237 [Journal]
  33. Koichi Betsumiya, Stelios Georgiou, T. Aaron Gulliver, Masaaki Harada, Christos Koukouvinos
    On self-dual codes over some prime fields. [Citation Graph (0, 0)][DBLP]
    Discrete Mathematics, 2003, v:262, n:1-3, pp:37-58 [Journal]
  34. Stefka Bouyuklieva, Masaaki Harada
    On Type IV self-dual codes over Z4. [Citation Graph (0, 0)][DBLP]
    Discrete Mathematics, 2002, v:247, n:1-3, pp:25-50 [Journal]
  35. Steven T. Dougherty, Masaaki Harada, Patrick Solé
    Shadow lattices and shadow codes. [Citation Graph (0, 0)][DBLP]
    Discrete Mathematics, 2000, v:219, n:1-3, pp:49-64 [Journal]
  36. T. Aaron Gulliver, Masaaki Harada, Jon-Lark Kim
    Construction of new extremal self-dual codes. [Citation Graph (0, 0)][DBLP]
    Discrete Mathematics, 2003, v:263, n:1-3, pp:81-91 [Journal]
  37. T. Aaron Gulliver, Masaaki Harada, Jon-Lark Kim
    Erratum to "Construction of new extremal self-dual codes" [Discrete Mathematics 263 (2003) 81-91]. [Citation Graph (0, 0)][DBLP]
    Discrete Mathematics, 2004, v:289, n:1-3, pp:207-0 [Journal]
  38. Masaaki Harada
    On the existence of extremal Type II codes over Z6. [Citation Graph (0, 0)][DBLP]
    Discrete Mathematics, 2000, v:223, n:1-3, pp:373-378 [Journal]
  39. Masaaki Harada
    An extremal ternary self-dual [28, 14, 9] code with a trivial automorphism group. [Citation Graph (0, 0)][DBLP]
    Discrete Mathematics, 2001, v:239, n:1-3, pp:121-125 [Journal]
  40. Masaaki Harada
    Self-dual Z4-codes and Hadamard matrices. [Citation Graph (0, 0)][DBLP]
    Discrete Mathematics, 2002, v:245, n:1-3, pp:273-278 [Journal]
  41. Masaaki Harada, Michio Ozeki
    Extremal self-dual codes with the smallest covering radius. [Citation Graph (0, 0)][DBLP]
    Discrete Mathematics, 2000, v:215, n:, pp:271-281 [Journal]
  42. Masaaki Harada, Patric R. J. Östergård
    Self-dual and maximal self-orthogonal codes over F7. [Citation Graph (0, 0)][DBLP]
    Discrete Mathematics, 2002, v:256, n:1-2, pp:471-477 [Journal]
  43. Masaaki Harada, Vladimir D. Tonchev
    Self-orthogonal Codes from Symmetric Designs with Fixed-point-free Auto-morphisms. [Citation Graph (0, 0)][DBLP]
    Discrete Mathematics, 2003, v:264, n:1-3, pp:81-90 [Journal]
  44. T. Aaron Gulliver, Masaaki Harada
    Classification of extremal double circulant self-dual codes of lengths 74-88. [Citation Graph (0, 0)][DBLP]
    Discrete Mathematics, 2006, v:306, n:17, pp:2064-2072 [Journal]
  45. Masaaki Harada, Masaaki Kitazume
    Z4-Code Constructions for the Niemeier Lattices and their Embeddings in the Leech Lattice. [Citation Graph (0, 0)][DBLP]
    Eur. J. Comb., 2000, v:21, n:4, pp:473-485 [Journal]
  46. Masaaki Harada, Masaaki Kitazume
    Z6-Code Constructions of the Leech Lattice and the Niemeier Lattices. [Citation Graph (0, 0)][DBLP]
    Eur. J. Comb., 2002, v:23, n:5, pp:573-581 [Journal]
  47. Masaaki Harada, Masaaki Kitazume, Akihiro Munemasa, Boris Venkov
    On some self-dual codes and unimodular lattices in dimension 48. [Citation Graph (0, 0)][DBLP]
    Eur. J. Comb., 2005, v:26, n:5, pp:543-557 [Journal]
  48. Masaaki Harada, Patric R. J. Östergård
    Classification of Extremal Formally Self-Dual Even Codes of Length 22. [Citation Graph (0, 0)][DBLP]
    Graphs and Combinatorics, 2002, v:18, n:3, pp:507-516 [Journal]
  49. Masaaki Harada, Patric R. J. Östergård
    On the Classification of Self-Dual Codes over F5. [Citation Graph (0, 0)][DBLP]
    Graphs and Combinatorics, 2003, v:19, n:2, pp:203-214 [Journal]
  50. T. Aaron Gulliver, Masaaki Harada
    Orthogonal Frames in the Leech Lattice and a Type II Code over Integer 22. [Citation Graph (0, 0)][DBLP]
    J. Comb. Theory, Ser. A, 2001, v:95, n:1, pp:185-188 [Journal]
  51. T. Aaron Gulliver, Masaaki Harada
    An Optimal Unimodular Lattice in Dimension 39. [Citation Graph (0, 0)][DBLP]
    J. Comb. Theory, Ser. A, 1999, v:88, n:1, pp:158-161 [Journal]
  52. Masaaki Harada, Masaaki Kitazume, Akihiro Munemasa
    On a 5-design related to an extremal doubly even self-dual code of length 72. [Citation Graph (0, 0)][DBLP]
    J. Comb. Theory, Ser. A, 2004, v:107, n:1, pp:143-146 [Journal]
  53. Toru Aoki, Philippe Gaborit, Masaaki Harada, Michio Ozeki, Patrick Solé
    On the covering radius of Z4-codes and their lattices. [Citation Graph (0, 0)][DBLP]
    IEEE Transactions on Information Theory, 1999, v:45, n:6, pp:2162-2168 [Journal]
  54. Eiichi Bannai, Steven T. Dougherty, Masaaki Harada, Manabu Oura
    Type II Codes, Even Unimodular Lattices, and Invariant Rings. [Citation Graph (0, 0)][DBLP]
    IEEE Transactions on Information Theory, 1999, v:45, n:4, pp:1194-1205 [Journal]
  55. Koichi Betsumiya, T. Aaron Gulliver, Masaaki Harada, Akihiro Munemasa
    On type II codes over F4. [Citation Graph (0, 0)][DBLP]
    IEEE Transactions on Information Theory, 2001, v:47, n:6, pp:2242-2248 [Journal]
  56. Koichi Betsumiya, Masaaki Harada
    Optimal self-dual codes over F2*F2 with respect to the Hamming weight. [Citation Graph (0, 0)][DBLP]
    IEEE Transactions on Information Theory, 2004, v:50, n:2, pp:356-358 [Journal]
  57. Radinka Dontcheva, Masaaki Harada
    New extremal self-dual codes of length 62 and related extremal self-dual codes. [Citation Graph (0, 0)][DBLP]
    IEEE Transactions on Information Theory, 2002, v:48, n:7, pp:2060-2064 [Journal]
  58. Steven T. Dougherty, T. Aaron Gulliver, Masaaki Harada
    Extremal binary self-dual codes. [Citation Graph (0, 0)][DBLP]
    IEEE Transactions on Information Theory, 1997, v:43, n:6, pp:2036-2047 [Journal]
  59. Steven T. Dougherty, Philippe Gaborit, Masaaki Harada, Akihiro Munemasa, Patrick Solé
    Type IV self-dual codes over rings. [Citation Graph (0, 0)][DBLP]
    IEEE Transactions on Information Theory, 1999, v:45, n:7, pp:2345-2360 [Journal]
  60. Steven T. Dougherty, Philippe Gaborit, Masaaki Harada, Patrick Solé
    Type II Codes Over F2 + u F2. [Citation Graph (0, 0)][DBLP]
    IEEE Transactions on Information Theory, 1999, v:45, n:1, pp:32-45 [Journal]
  61. Steven T. Dougherty, Masaaki Harada
    New extremal self-dual codes of length 68. [Citation Graph (0, 0)][DBLP]
    IEEE Transactions on Information Theory, 1999, v:45, n:6, pp:2133-2136 [Journal]
  62. T. Aaron Gulliver, Masaaki Harada
    Weight enumerators of extremal singly-even [60, 30, 12] codes. [Citation Graph (0, 0)][DBLP]
    IEEE Transactions on Information Theory, 1996, v:42, n:2, pp:658-659 [Journal]
  63. T. Aaron Gulliver, Masaaki Harada
    Double Circulant Self-Dual Codes Over Z2k. [Citation Graph (0, 0)][DBLP]
    IEEE Transactions on Information Theory, 1998, v:44, n:7, pp:3105-3123 [Journal]
  64. T. Aaron Gulliver, Masaaki Harada
    Codes of Lengths 120 and 136 Meeting the Grey-Rankin Bound and Quasi-Symmetric Designs. [Citation Graph (0, 0)][DBLP]
    IEEE Transactions on Information Theory, 1999, v:45, n:2, pp:703-706 [Journal]
  65. T. Aaron Gulliver, Masaaki Harada
    Construction of optimal Type IV self-dual codes over F2+µF2. [Citation Graph (0, 0)][DBLP]
    IEEE Transactions on Information Theory, 1999, v:45, n:7, pp:2520-2521 [Journal]
  66. Masaaki Harada
    Construction of an Extremal Self-Dual Code of Length 62. [Citation Graph (0, 0)][DBLP]
    IEEE Transactions on Information Theory, 1999, v:45, n:4, pp:1232-1233 [Journal]
  67. Masaaki Harada
    New extremal self-dual codes of lengths 36 and 38. [Citation Graph (0, 0)][DBLP]
    IEEE Transactions on Information Theory, 1999, v:45, n:7, pp:2541-2543 [Journal]
  68. Masaaki Harada, Akihiro Munemasa
    Some restrictions on weight enumerators of singly even self-dual codes. [Citation Graph (0, 0)][DBLP]
    IEEE Transactions on Information Theory, 2006, v:52, n:3, pp:1266-1269 [Journal]
  69. Alexis Bonnecaze, Philippe Gaborit, Masaaki Harada, Masaaki Kitazume, Patrick Solé
    Niemeier lattices and Type II codes over Z4. [Citation Graph (0, 0)][DBLP]
    Discrete Mathematics, 1999, v:205, n:1-3, pp:1-21 [Journal]
  70. T. Aaron Gulliver, Masaaki Harada
    Extremal double circulant Type II codes over Z4 and construction of 5-(24, 10, 36) designs. [Citation Graph (0, 0)][DBLP]
    Discrete Mathematics, 1999, v:194, n:1-3, pp:129-137 [Journal]
  71. Steven T. Dougherty, T. Aaron Gulliver, Masaaki Harada
    Optimal ternary formally self-dual codes. [Citation Graph (0, 0)][DBLP]
    Discrete Mathematics, 1999, v:196, n:1-3, pp:117-135 [Journal]
  72. Masaaki Harada, T. Aaron Gulliver, Hitoshi Kaneta
    Classification of extremal double-circulant self-dual codes of length up to 62. [Citation Graph (0, 0)][DBLP]
    Discrete Mathematics, 1998, v:188, n:1-3, pp:127-136 [Journal]

  73. On the Classification of Self-dual -Codes. [Citation Graph (, )][DBLP]


  74. There exists no self-dual [24,12,10] code over F5 [Citation Graph (, )][DBLP]


  75. An Upper Bound on the Minimum Weight of Type II ZZ2k-Codes [Citation Graph (, )][DBLP]


  76. There exists no self-dual [24, 12, 10] code over \mathbb F5{{\mathbb F}_5}. [Citation Graph (, )][DBLP]


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