Magma

MAGMA Computational Algebra System

Magma
 •  How to get it
 •  Download
 •  Online Demo
 
Resources
 •  Online Help
 •  Discovering Mathematics with Magma
 •  Citations
 •  How to cite Magma
 •  Links
 
 •  Contact us

Combinatorics

Designs and Configurations

05Bxx

[1] David Applegate, E. M. Rains, and N. J. A. Sloane. On asymmetric coverings and covering numbers. J. Combin. Des., 11(3):218–228, 2003.
[2] Makoto Araya, Masaaki Harada, and Hadi Kharaghani. Some Hadamard matrices of order 32 and their binary codes. J. Combin. Des., 12(2):142–146, 2004.
[3] Eiichi Bannai and Etsuko Bannai. On Euclidean tight 4-designs. J. Math. Soc. Japan, 58(3):775–804, 2006.
[4] L. M. Batten and J. M. Dover. Some sets of type (m, n) in cubic order planes. Des. Codes Cryptogr., 16(3):211–213, 1999.
[5] Thomas Beth, Christopher Charnes, Markus Grassl, Gernot Alber, Aldo Delgado, and Michael Mussinger. A new class of designs which protect against quantum jumps. Des. Codes Cryptogr., 29(1-3):51–70, 2003.
[6] Anton Betten, Adalbert Kerber, Reinhard Laue, and Alfred Wassermann. Simple 8-designs with small parameters. Des. Codes Cryptogr., 15(1):5–27, 1998.
[7] A. Bonnecaze, E. Rains, and P. Solé. 3-colored 5-designs and Z4-codes. J. Statist. Plann. Inference, 86(2):349–368, 2000.
[8] A. Bonnecaze, P. Solé, and P. Udaya. Tricolore 3-designs in type III codes. Discrete Math., 241(1-3):129–138, 2001.
[9] Alexis Bonnecaze, Bernard Mourrain, and Patrick Solé. Jacobi polynomials, type II codes, and designs. Des. Codes Cryptogr., 16(3):215–234, 1999.
[10] Thomas Britz and Carrie G. Rutherford. Covering radii are not matroid invariants. Discrete Math., 296(1):117–120, 2005.
[11] S. Allen Broughton, Robert M. Dirks, Maria T. Sloughter, and C. Ryan Vinroot. Triangular surface tiling groups for low genus. Preprint.
[12] I. Cardinali, N. Durante, T. Penttila, and R. Trombetti. Bruen chains over fields of small order. Discrete Math., 282(1-3):245–247, 2004.
[13] L. L. Carpenter and J. D. Key. On Hadamard matrices from resolvable Steiner designs. In Proceedings of the Twenty-sixth Southeastern International Conference on Combinatorics, Graph Theory and Computing (Boca Raton, FL, 1995), volume 108, pages 53–63, 1995.
[14] David B. Chandler and Qing Xiang. Cyclic relative difference sets and their p-ranks. Des. Codes Cryptogr., 30(3):325–343, 2003.
[15] Chris Charnes, Martin Rötteler, and Thomas Beth. Homogeneous bent functions, invariants, and designs. Des. Codes Cryptogr., 26(1-3):139–154, 2002.
[16] D. Combe, W. D. Palmer, and W. R. Unger. Bhaskar Rao designs and the alternating group A4. Australas. J. Combin., 24:275–283, 2001.
[17] Marston Conder and John McKay. Markings of the Golay code. New Zealand J. Math., 25(2):133–139, 1996.
[18] Antonio Cossidente and Sam K. J. Vereecke. Some geometry of the isomorphism Sp(4, q)≅O(5, q), q even. J. Geom., 70(1-2):28–37, 2001.
[19] Warwick de Launey and Richard M. Stafford. On cocyclic weighing matrices and the regular group actions of certain Paley matrices. Discrete Appl. Math., 102(1-2):63–101, 2000.
[20] U. Dempwolff. Automorphisms and equivalence of bent functions and of difference sets in elementary abelian 2-groups. Comm. Algebra, 34(3):1077–1131, 2006.
[21] Cunsheng Ding, Zeying Wang, and Qing Xiang. Skew Hadamard difference sets from the Ree-Tits slice symplectic spreads in PG(3, 32h + 1). arXiv:math/0609586, 18 pages, 2006.
[22] G. L. Ebert. Quasimultiples of geometric designs. Discrete Math., 284(1-3):123–129, 2004.
[23] Ronald Evans, Henk D. L. Hollmann, Christian Krattenthaler, and Qing Xiang. Gauss sums, Jacobi sums, and p-ranks of cyclic difference sets. J. Combin. Theory Ser. A, 87(1):74–119, 1999.
[24] D. L. Flannery. Cocyclic Hadamard matrices and Hadamard groups are equivalent. J. Algebra, 192(2):749–779, 1997.
[25] Anna Fukshansky and Corinna Wiedorn. C-extensions of the Petersen geometry for M22. European J. Combin., 20(3):233–238, 1999.
[26] S. Georgiou and C. Koukouvinos. Some results on orthogonal designs and Hadamard matrices. Int. J. Appl. Math., 17(4):433–443, 2005.
[27] Claudia Gohlisch, Helmut Koch, and Gabriele Nebe. Block squares. Math. Nachr., 241:73–102, 2002.
[28] Masaaki Harada. On the self-dual F5-codes constructed from Hadamard matrices of order 24. J. Combin. Des., 13(2):152–156, 2005.
[29] Masaaki Harada. Self-orthogonal 3-(56, 12, 65) designs and extremal doubly-even self-dual codes of length 56. Des. Codes Cryptogr., 38(1):5–16, 2006.
[30] Masaaki Harada, Clement Lam, and Vladimir D. Tonchev. Symmetric (4, 4)-nets and generalized Hadamard matrices over groups of order 4. Des. Codes Cryptogr., 34(1):71–87, 2005.
[31] Masaaki Harada and Akihiro Munemasa. A quasi-symmetric 2-(49, 9, 6) design. J. Combin. Des., 10(3):173–179, 2002.
[32] Masaaki Harada and Vladimir D. Tonchev. Self-orthogonal codes from symmetric designs with fixed-point-free automorphisms. Discrete Math., 264(1-3):81–90, 2003.
[33] K. J. Horadam. An introduction to cocyclic generalised Hadamard matrices. Discrete Appl. Math., 102(1-2):115–131, 2000.
[34] K. J. Horadam and P. Udaya. A new class of ternary cocyclic Hadamard codes. Appl. Algebra Engrg. Comm. Comput., 14(1):65–73, 2003.
[35] Naoyuki Horiguchi, Hiroyuki Nakasora, and Takehisa Wakabayashi. On the strongly regular graphs obtained from quasi-symmetric 2-(31, 7, 7) designs. Bull. Yamagata Univ. Natur. Sci., 16(1):1–6, 2005.
[36] J. D. Key and M. J. de Resmini. Small sets of even type and codewords. J. Geom., 61(1-2):83–104, 1998.
[37] J. D. Key and K. Mackenzie-Fleming. Rigidity theorems for a class of affine resolvable designs. J. Combin. Math. Combin. Comput., 35:147–160, 2000.
[38] J. D. Key, T. P. McDonough, and V. C. Mavron. Partial permutation decoding for codes from finite planes. European J. Combin., 26(5):665–682, 2005.
[39] J. D. Key and J. Moori. Codes, designs and graphs from the Janko groups J1 and J2. J. Combin. Math. Combin. Comput., 40:143–159, 2002.
[40] J. D. Key and F. D. Shobe. Some transitive Steiner triple systems of Bagchi and Bagchi. J. Statist. Plann. Inference, 58(1):79–86, 1997.
[41] J. D. Key and F. E. Sullivan. Steiner triple systems with many affine hyperplanes. In Proceedings of the Twenty-sixth Southeastern International Conference on Combinatorics, Graph Theory and Computing (Boca Raton, FL, 1995), volume 107, pages 105–112, 1995.
[42] Jon-Lark Kim and Vera Pless. Designs in additive codes over GF(4). Des. Codes Cryptogr., 30(2):187–199, 2003.
[43] Ilias S. Kotsireas and Christos Koukouvinos. Orthogonal designs via computational algebra. J. Combin. Des., 14(5):351–362, 2006.
[44] Ilias S. Kotsireas, Christos Koukouvinos, and Jennifer Seberry. Hadamard ideals and Hadamard matrices with circulant core. J. Combin. Math. Combin. Comput., 57:47–63, 2006.
[45] Ilias S. Kotsireas, Christos Koukouvinos, and Jennifer Seberry. Hadamard ideals and Hadamard matrices with two circulant cores. European J. Combin., 27(5):658–668, 2006.
[46] Wolfgang Lempken. Two new symmetric 2-(144, 66, 30) designs. Preprint.
[47] Akihiro Munemasa and Vladimir D. Tonchev. A new quasi-symmetric 2-(56, 16, 6) design obtained from codes. Discrete Math., 284(1-3):231–234, 2004.
[48] Christopher Parker and Vladimir D. Tonchev. Linear codes and doubly transitive symmetric designs. Linear Algebra Appl., 226/228:237–246, 1995.
[49] E. M. Rains, N. J. A. Sloane, and John Stufken. The lattice of N-run orthogonal arrays. J. Statist. Plann. Inference, 102(2):477–500, 2002.
[50] Michel Sebille. On a result of Cameron and Praeger on block-transitive point-imprimitive t-designs. In Algebraic Combinatorics and Applications (Gößweinstein, 1999), pages 316–323. Springer, Berlin, 2001.
[51] Pawel Wocjan. Efficient decoupling schemes with bounded controls based on Eulerian orthogonal arrays. Phy. Rev. A., 73(6):7, 2006.

Prev: Enumerative Combinatorics Up: Combinatorics Next: Graph Theory

Valid HTML 4.01! Valid CSS!