Research Output

Article

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., 1 Feb 2016, In : JOURNAL OF COMBINATORIAL OPTIMIZATION. 31, 2, p. 802-814 13 p.

Research output: Contribution to journalArticleScientificpeer-review

A Note on Toeplitz' Conjecture

Pettersson, V. H., Tverberg, H. A. & Östergård, P. R. J., 2014, In : Discrete and Computational Geometry. 51, 3, p. 722-728

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

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)

Bounds on the domination number of Kneser graphs

Östergård, P. R. J., Shao, Z. & Xu, X., 2015, In : ARS MATHEMATICA CONTEMPORANEA. 9, 2, p. 197-205

Research output: Contribution to journalArticleScientificpeer-review

4 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 Cyclic Steiner Quadruple Systems

Chang, Y., Fan, B., Feng, T., Holt, D. F. & Östergård, P. R. J., Mar 2017, In : Journal of Combinatorial Designs. 25, 3, 19 p.

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

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)

Classification of Graeco-Latin cubes

Kokkala, J. I. & Östergård, P. R. J., 2015, In : Journal of Combinatorial Designs. 23, 12, p. 509-521

Research output: Contribution to journalArticleScientificpeer-review

8 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

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)

Constructing error-correcting binary codes using transitive permutation groups

Laaksonen, A. & Östergård, P. R. J., 2017, In : Discrete Applied Mathematics. 233, p. 65-70

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Constructions of maximum few-distance sets in euclidean spaces

Östergård, P. R. J. & Szollosi, F., 1 Jan 2020, In : Electronic Journal of Combinatorics. 27, 1, P1.23.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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1 Citation (Scopus)
22 Downloads (Pure)

COUNTING HAMILTONIAN CYCLES IN BIPARTITE GRAPHS

Haanpää, H. & Östergård, P. R. J., 2014, In : Mathematics of Computation. 83, 286, p. 979-995

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Enumerating Cube Tilings

Kizhakkepallathu, A. M., Östergård, P. RJ. & Popa, A., 2013, In : Discrete and Computational Geometry. 50, 4, p. 1112-1122

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Enumerating Perfect Matchings in n-Cubes

Östergård, P. R. J. & Pettersson, V., 2013, In : ORDER: A JOURNAL ON THE THEORY OF ORDERED SETS AND ITS APPLICATIONS. 30, 3, p. 821-835

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

Enumeration of Seidel matrices

Szöllősi, F. & Östergård, P. R. J., 1 Mar 2018, In : European Journal of Combinatorics. 69, p. 169-184 16 p.

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

Enumeration of Steiner triple systems with subsystems,

Kaski, P., Östergård, P. R. J. & Popa, A., 2015, In : Mathematics of Computation. 84, p. 3051-3067

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Exhaustive search for snake-in-the-box codes

Östergård, P. R. J. & Pettersson, V. H., 2015, In : Graphs and Combinatorics. 31, 4, p. 1019-1028

Research output: Contribution to journalArticleScientificpeer-review

Existence of q-analogs of Steiner systems

Braun, M., Etzion, T., Östergård, P. R. J., Vardy, A. & Wassermann, A., 30 Aug 2016, In : FORUM OF MATHEMATICS, PI. 4, 14 p., e7.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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32 Citations (Scopus)
317 Downloads (Pure)

Further results on the classification of MDS codes

Kokkala, J. I. & Östergård, P. R. J., 1 Aug 2016, In : Advances in Mathematics of Communications. 10, 3, p. 489-498 10 p.

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Hypercube packings and their holes

Kizhakkepallathu, A. M. & Östergård, P. R. J., 2015, In : Congressus Numerantium. 219, p. 89-95

Research output: Contribution to journalArticleScientificpeer-review

Independent domination of grids

Crevals, S. & Östergård, P. R. J., 2015, In : Discrete Mathematics. 338, 8, p. 1379-1384

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

Kirkman triple systems with subsystems

Kokkala, J. I. & Östergård, P. R. J., Sep 2020, In : Discrete Mathematics. 343, 9, 111960.

Research output: Contribution to journalArticleScientificpeer-review

Large sets of t-designs over finite fields

Braun, M., Kohnert, A., Östergård, P. R. J. & Wassermann, A., 2014, In : Journal of Combinatorial Theory Series A. 124, p. 195-202

Research output: Contribution to journalArticleScientificpeer-review

14 Citations (Scopus)

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)

Mappings of Butson-type Hadamard matrices

Östergård, P. R. J. & Paavola, W. T., 1 Sep 2018, In : Discrete Mathematics. 341, 9, p. 2387-2397 11 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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3 Citations (Scopus)
9 Downloads (Pure)

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)

New Lower Bounds for Binary Constant-Dimension Subspace Codes

Braun, M., Östergård, P. R. J. & Wassermann, A., 2018, In : Experimental Mathematics. 27, 2, p. 179-183 5 p.

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

New lower bounds for the Shannon capacity of odd cycles

Mathew, K. A. & Östergård, P. R. J., Jul 2017, In : DESIGNS CODES AND CRYPTOGRAPHY. 84, 1-2, p. 13-22 10 p.

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

New lower bounds on q-ary error-correcting codes

Laaksonen, A. & Östergård, P. R. J., 15 Sep 2019, In : CRYPTOGRAPHY AND COMMUNICATIONS. 11, 5, p. 881-889 9 p.

Research output: Contribution to journalArticleScientificpeer-review

New Results on Tripod Packings

Östergård, P. R. J. & Pöllänen, A., 15 Mar 2019, In : Discrete and Computational Geometry. 61, 2, p. 271–284 14 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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88 Downloads (Pure)

Non-existence of a ternary constant weight (16, 5, 15; 2048) diameter perfect code

Krotov, D. S., Östergård, P. R. J. & Pottonen, O., 1 May 2016, In : Advances in Mathematics of Communications. 10, 2, p. 393-399 7 p.

Research output: Contribution to journalArticleScientificpeer-review

Om q-analogier

Östergård, P. R. J., 2014, In : Arkhimedes. 3, p. 16-19

Research output: Contribution to journalArticleProfessional

On hypercube packings, blocking sets and a covering problem

Kizhakkepallathu, A. M. & Östergård, P. R. J., 2015, In : Information Processing Letters. 115, 2, p. 141-145

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

On optimal binary codes with unbalanced coordinates, Applicable Algebra in Engineering

Östergård, P. R. J., 2013, In : APPLICABLE ALGEBRA IN ENGINEERING COMMUNICATION AND COMPUTING. 24, 3-4, p. 197-200

Research output: Contribution to journalArticleScientificpeer-review

4 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 Classification of MDS codes

Kokkala, J. I., Krotov, D. S. & Östergård, P. R. J., 2015, In : IEEE Transactions on Information Theory. 61, 12, p. 6485-6492

Research output: Contribution to journalArticleScientificpeer-review

13 Citations (Scopus)

On the domination number of 2-dimensional torus graphs

Crevals, S. & Östergard, P. R. J., 1 Mar 2018, In : Utilitas Mathematica. 106, p. 289-300 12 p.

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)

On the Maximum Length of Coil-in-the-Box Codes in Dimension 8

Östergård, P. R. J. & Pettersson, V. H., 2014, In : Discrete Applied Mathematics. 179, p. 193-200

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

On the minimum size of 4-uniform hypergraphs without property B

Östergård, P. R. J., 2014, In : Discrete Applied Mathematics. 163, 2, p. 199-204

Research output: Contribution to journalArticleScientificpeer-review

7 Citations (Scopus)

On the Shannon Capacity of Triangular Graphs

Kizhakkepallathu, A. M., Östergård, P. RJ. & Popa, A., 2013, In : The Electronic Journal of Combinatorics. 20, 2, p. 27

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

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)

On the structure of small strength-2 covering arrays

Kokkala, J., Meagher, K., Naserasr, R., Nurmela, K. J., Östergård, P. R. J. & Stevens, B., Jan 2020, In : Journal of Combinatorial Designs. 28, 1, p. 5-24

Research output: Contribution to journalArticleScientificpeer-review

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)

ORDERLY GENERATION OF BUTSON HADAMARD MATRICES

Lampio, P. H. J., Ostergard, P. R. J. & Szollosi, F., Jan 2020, In : Mathematics of Computation. 89, 321, p. 313-331 19 p.

Research output: Contribution to journalArticleScientificpeer-review

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)

Permutation codes invariant under isometries

Janiszczak, I., Lempken, W., Östergård, P. R. J. & Staszewski, R., 2015, In : DESIGNS CODES AND CRYPTOGRAPHY. 75, 3, p. 497-507

Research output: Contribution to journalArticleScientificpeer-review

11 Citations (Scopus)

Planar Hypohamiltonian Graphs on 40 Vertices

Jooyandeh, M., Mckay, B. D., Östergård, P. R. J., Pettersson, V. H. & Zamfirescu, C. T., Feb 2017, In : JOURNAL OF GRAPH THEORY. 84, 2, p. 121-133 13 p.

Research output: Contribution to journalArticleScientificpeer-review

12 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)