Research Output

2012

On triple systems and strongly regular graphs

Behbahani, M., Lam, C. & Östergård, P. R. J., 2012, In : Journal of Combinatorial Theory Series A. 119, 7, p. 1414-1426

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Packing Costas arrays

Dinitz, J. H., Östergård, P. R. J. & Stinson, D. R., 2012, In : JCMCC. 80, p. 385-403

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Steiner triple systems satisfying the 4-vertex condition

Kaski, P., Khatirinejad, M. & Östergård, P. R. J., 2012, In : DESIGNS CODES AND CRYPTOGRAPHY. 62, 3, p. 323-330

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Switching codes and designs

Östergård, P. R. J., 2012, In : Discrete Mathematics. 312, 3, p. 621-632

Research output: Contribution to journalArticleScientificpeer-review

13 Citations (Scopus)
2011

Classification of difference matrices over cyclic groups

Lampio, P. & Östergård, P. R. J., 2011, In : Journal of Statistical Planning and Inference. 141, 3, p. 1194-1207

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Computing the domination number of grid graphs

Alanko, S., Crevals, S., Isopoussu, A., Östergård, P. & Pettersson, V., 2011, In : The Electronic Journal of Combinatorics. 18, 1, p. 18

Research output: Contribution to journalArticleScientificpeer-review

20 Citations (Scopus)

Nearly Kirkman triple systems of order 18 and Hanani triple systems of order 19

Colbourn, C. J., Kaski, P., Östergård, P. R. J., Pike, D. A. & Pottonen, O., 2011, In : Discrete Mathematics. 311, 10-11, p. 827-834

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

On optimal binary one-error-correcting codes of lengths 2^{m-4} and 2^{m-3}

Krotov, D. S., Östergård, P. R. J. & Pottonen, O., 2011, In : IEEE Transactions on Information Theory. 57, 10, p. 6771-6779

Research output: Contribution to journalArticleScientificpeer-review

On the size of optimal three-error-correcting binary codes of length 16

Östergård, P. R. J., 2011, In : IEEE Transactions on Information Theory. 57, 10, p. 6824-6826

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)

Russian doll search for the Steiner triple covering problem

Östergård, P. R. J. & Vaskelainen, V. P., 2011, In : OPTIMIZATION LETTERS. 5, 4, p. 631-638

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

The Cycle Switching Graph of the Steiner Triple Systems of Order 19 is Connected

Kaski, P., Mäkinen, V. & Östergård, P. R. J., 2011, In : Graphs and Combinatorics. 27, 4, p. 539-546

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

The number of Latin squares of order 11

Hulpke, A., Kaski, P. & Östergård, P. R. J., 2011, In : Mathematics of Computation. 80, 274, p. 1197-1219

Research output: Contribution to journalArticleScientificpeer-review

29 Citations (Scopus)

Two optimal one-error-correcting codes of length 13 that are not doubly shortened perfect codes

Östergård, P. R. J. & Pottonen, O., 2011, In : DESIGNS CODES AND CRYPTOGRAPHY. 59, 1-3, p. 281-285 5 p.

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)
2010

A census of one-factorizations of the complete 3-uniform hypergraph of order 9

Khatirinejad, M. & Östergård, P. R. J., 2010, In : Australasian Journal of Combinatorics. 47, p. 239-245

Research output: Contribution to journalArticleScientificpeer-review

Algorithms for Finding Maximum Transitive Subtournaments

Kiviluoto, L., Östergård, P. R. J. & Vaskelainen, V. P., 2010, Espoo, p. 15.

Research output: Working paperProfessional

A tournament of order 14 with disjoint Banks and Slater sets

Östergård, P. R. J. & Vaskelainen, V., 2010, In : Discrete Applied Mathematics. 158, 5, p. 588-591

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

Classification of binary constant weight codes

Östergård, P. R. J., 2010, In : IEEE Transactions on Information Theory. 56, 8, p. 3779-3785

Research output: Contribution to journalArticleScientificpeer-review

21 Citations (Scopus)

Classification of starters

Linja-aho, V. & Östergård, P. R. J., 2010, In : JCMCC. 75, November, p. 153-159

Research output: Contribution to journalArticleScientificpeer-review

Linear codes with covering radius 3

Davydov, A. A. & Östergård, P. R. J., 2010, In : DESIGNS CODES AND CRYPTOGRAPHY. 54, 3, p. 253-271

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)

Properties of the Steiner triple systems of order 19

Colbourn, C. J., Forbes, A. D., Grannell, M. J., Griggs, T. S., Kaski, P., Östergård, P. R. J., Pike, D. A. & Pottonen, O., 2010, In : The Electronic Journal of Combinatorics. 17, 1, p. 30

Research output: Contribution to journalArticleScientificpeer-review

13 Citations (Scopus)

The nonexistence of a (K_6-e)-decomposition of the complete graph K_29

Hartke, S. G., Östergård, P. R. J., Bryant, D. & El-Zanati, S. I., 2010, In : Journal of Combinatorial Designs. 18, 2, p. 94-104

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

The perfect binary one-error-correcting codes of length 15: Part II-Properties

Östergård, P. R. J., Pottonen, O. & Phelps, K., 2010, In : IEEE Transactions on Information Theory. 56, 6, p. 2571-2582

Research output: Contribution to journalArticleScientificpeer-review

20 Citations (Scopus)