Patric R. J. Östergård

Publication Activity (10 Years)

Years Active: 1991-2023
Publications (10 Years): 27

Top Venues

CoRR

Discret. Math.

Math. Comput.

Des. Codes Cryptogr.

Publications

Lucia Moura, Anamari Nakic, Patric R. J. Östergård, Alfred Wassermann, Charlene Weiß
Pushing the Limits of Computational Combinatorial Constructions (Dagstuhl Seminar 23161). Dagstuhl Reports 13 (4) (2023)
József Balogh, The Nguyen, Patric R. J. Östergård, Ethan Patrick White, Michael C. Wigal
Improving Uniquely Decodable Codes in Binary Adder Channels. CoRR (2023)
Jan Goedgebeur, Patric R. J. Östergård
Switching 3-edge-colorings of cubic graphs. Discret. Math. 345 (9) (2022)
Jan Goedgebeur, Patric R. J. Östergård
Switching 3-edge-colorings of cubic graphs. CoRR (2021)
Ferenc Szöllösi, Patric R. J. Östergård
Constructions of Maximum Few-Distance Sets in Euclidean Spaces. Electron. J. Comb. 27 (1) (2020)
Janne I. Kokkala, Patric R. J. Östergård
Kirkman triple systems with subsystems. Discret. Math. 343 (9) (2020)
Patric R. J. Östergård, Pekka H. J. Lampio, Ferenc Szöllösi
Orderly generation of Butson Hadamard matrices. Math. Comput. 89 (321) (2020)
Antti Laaksonen, Patric R. J. Östergård
New lower bounds on q-ary error-correcting codes. Cryptogr. Commun. 11 (5) (2019)
Patric R. J. Östergård
The sextuply shortened binary Golay code is optimal. Des. Codes Cryptogr. 87 (2-3) (2019)
Patric R. J. Östergård, Antti Pöllänen
New Results on Tripod Packings. Discret. Comput. Geom. 61 (2) (2019)
Patric R. J. Östergård, William T. Paavola
Mappings of Butson-type Hadamard matrices. Discret. Math. 341 (9) (2018)
Michael Braun, Patric R. J. Östergård, Alfred Wassermann
New Lower Bounds for Binary Constant-Dimension Subspace Codes. Exp. Math. 27 (2) (2018)
Patric R. J. Östergård, Leonard H. Soicher
There is no McLaughlin geometry. J. Comb. Theory, Ser. A 155 (2018)
Janne I. Kokkala, Patric R. J. Östergård
The chromatic number of the square of the 8-cube. Math. Comput. 87 (313) (2018)
Patric R. J. Östergård, William D. Weakley
Switching of covering codes. Discret. Math. 341 (6) (2018)
Ferenc Szöllösi, Patric R. J. Östergård
Enumeration of Seidel matrices. Eur. J. Comb. 69 (2018)
Sebastian Brandt, Juho Hirvonen, Janne H. Korhonen, Tuomo Lempiäinen, Patric R. J. Östergård, Christopher Purcell, Joel Rybicki, Jukka Suomela, Przemyslaw Uznanski
LCL Problems on Grids. PODC (2017)
Mohammadreza Jooyandeh, Brendan D. McKay, Patric R. J. Östergård, Ville H. Pettersson, Carol T. Zamfirescu
Planar Hypohamiltonian Graphs on 40 Vertices. J. Graph Theory 84 (2) (2017)
Antti Laaksonen, Patric R. J. Östergård
Constructing error-correcting binary codes using transitive permutation groups. Discret. Appl. Math. 233 (2017)
K. Ashik Mathew, Patric R. J. Östergård
New lower bounds for the Shannon capacity of odd cycles. Des. Codes Cryptogr. 84 (1-2) (2017)
Sebastian Brandt, Juho Hirvonen, Janne H. Korhonen, Tuomo Lempiäinen, Patric R. J. Östergård, Christopher Purcell, Joel Rybicki, Jukka Suomela, Przemyslaw Uznanski
LCL problems on grids. CoRR (2017)
Antti Laaksonen, Patric R. J. Östergård
New Lower Bounds on Error-Correcting Ternary, Quaternary and Quinary Codes. ICMCTA (2017)
Lasse Kiviluoto, Patric R. J. Östergård, Vesa P. Vaskelainen
Algorithms for finding maximum transitive subtournaments. J. Comb. Optim. 31 (2) (2016)
Denis S. Krotov, Patric R. J. Östergård, Olli Pottonen
Non-existence of a ternary constant weight (16, 5, 15;2048) diameter perfect code. Adv. Math. Commun. 10 (2) (2016)
Antti Laaksonen, Patric R. J. Östergård
Constructing error-correcting binary codes using transitive permutation groups. CoRR (2016)
Janne I. Kokkala, Patric R. J. Östergård
Further results on the classification of MDS codes. Adv. Math. Commun. 10 (3) (2016)
Janne I. Kokkala, Patric R. J. Östergård
The chromatic number of the square of the 8-cube. CoRR (2016)
K. Ashik Mathew, Patric R. J. Östergård
On hypercube packings, blocking sets and a covering problem. Inf. Process. Lett. 115 (2) (2015)
Patric R. J. Östergård, Zehui Shao, Xiaodong Xu
Bounds on the domination number of Kneser graphs. Ars Math. Contemp. 9 (2) (2015)
Ingo Janiszczak, Wolfgang Lempken, Patric R. J. Östergård, Reiner Staszewski
Permutation codes invariant under isometries. Des. Codes Cryptogr. 75 (3) (2015)
Janne I. Kokkala, Patric R. J. Östergård
Further Results on the Classification of MDS Codes. CoRR (2015)
Janne I. Kokkala, Denis S. Krotov, Patric R. J. Östergård
On the Classification of MDS Codes. IEEE Trans. Inf. Theory 61 (12) (2015)
Janne I. Kokkala, Patric R. J. Östergård
A coloring of the square of the 8-cube with 13 colors. CoRR (2015)
K. Ashik Mathew, Patric R. J. Östergård
New Lower Bounds for the Shannon Capacity of Odd Cycles. CoRR (2015)
Simon Crevals, Patric R. J. Östergård
Independent domination of grids. Discret. Math. 338 (8) (2015)
Petteri Kaski, Patric R. J. Östergård, Alexandru Popa
Enumeration of Steiner triple systems with subsystems. Math. Comput. 84 (296) (2015)
Patric R. J. Östergård, Ville H. Pettersson
Exhaustive Search for Snake-in-the-Box Codes. Graphs Comb. 31 (4) (2015)
Michael Braun, Axel Kohnert, Patric R. J. Östergård, Alfred Wassermann
Large sets of t-designs over finite fields. J. Comb. Theory, Ser. A 124 (2014)
Petteri Kaski, André de Souza Medeiros, Patric R. J. Östergård, Ian M. Wanless
Switching in One-Factorisations of Complete Graphs. Electron. J. Comb. 21 (2) (2014)
Ville Pettersson, Helge A. Tverberg, Patric R. J. Östergård
A Note on Toeplitz' Conjecture. Discret. Comput. Geom. 51 (3) (2014)
Patric R. J. Östergård, Ville H. Pettersson
On the maximum length of coil-in-the-box codes in dimension 8. Discret. Appl. Math. 179 (2014)
Harri Haanpää, Patric R. J. Östergård
Counting Hamiltonian cycles in bipartite graphs. Math. Comput. 83 (286) (2014)
Patric R. J. Östergård
On the minimum size of 4-uniform hypergraphs without property B. Discret. Appl. Math. 163 (2014)
Janne I. Kokkala, Denis S. Krotov, Patric R. J. Östergård
Classification of MDS Codes over Small Alphabets. ICMCTA (2014)
Janne I. Kokkala, Denis S. Krotov, Patric R. J. Östergård
On the Classification of MDS Codes. CoRR (2014)
Denis S. Krotov, Patric R. J. Östergård, Olli Pottonen
Non-existence of a ternary constant weight $(16, 5, 15; 2048)$ diameter perfect code. CoRR (2014)
Ashik Mathew Kizhakkepallathu, Patric R. J. Östergård, Alexandru Popa
On the Shannon Capacity of Triangular Graphs. Electron. J. Comb. 20 (2) (2013)
Mohammadreza Jooyandeh, Brendan D. McKay, Patric R. J. Östergård, Ville Pettersson, Carol T. Zamfirescu
Planar Hypohamiltonian Graphs on 40 Vertices CoRR (2013)
Pekka H. J. Lampio, Ferenc Szöllösi, Patric R. J. Östergård
The quaternary complex Hadamard matrices of orders 10, 12, and 14. Discret. Math. 313 (2) (2013)
Patric R. J. Östergård
On optimal binary codes with unbalanced coordinates. Appl. Algebra Eng. Commun. Comput. 24 (3-4) (2013)
Patric R. J. Östergård, Ville Pettersson
Enumerating Perfect Matchings in n-Cubes. Order 30 (3) (2013)
K. Ashik Mathew, Patric R. J. Östergård, Alexandru Popa
Enumerating Cube Tilings. Discret. Comput. Geom. 50 (4) (2013)
Patric R. J. Östergård
Switching codes and designs. Discret. Math. 312 (3) (2012)
Majid Behbahani, Clement W. H. Lam, Patric R. J. Östergård
On triple systems and strongly regular graphs. J. Comb. Theory, Ser. A 119 (7) (2012)
Petteri Kaski, Mahdad Khatirinejad, Patric R. J. Östergård
Steiner triple systems satisfying the 4-vertex condition. Des. Codes Cryptogr. 62 (3) (2012)
Samu Alanko, Simon Crevals, Anton Isopoussu, Patric R. J. Östergård, Ville Pettersson
Computing the Domination Number of Grid Graphs. Electron. J. Comb. 18 (1) (2011)
Charles J. Colbourn, Petteri Kaski, Patric R. J. Östergård, David A. Pike, Olli Pottonen
Nearly Kirkman triple systems of order 18 and Hanani triple systems of order 19. Discret. Math. 311 (10-11) (2011)
Denis S. Krotov, Patric R. J. Östergård, Olli Pottonen
-3. IEEE Trans. Inf. Theory 57 (10) (2011)
Petteri Kaski, Veli Mäkinen, Patric R. J. Östergård
The Cycle Switching Graph of the Steiner Triple Systems of Order 19 is Connected. Graphs Comb. 27 (4) (2011)
Patric R. J. Östergård
On the Size of Optimal Three-Error-Correcting Binary Codes of Length 16. IEEE Trans. Inf. Theory 57 (10) (2011)
Denis S. Krotov, Patric R. J. Östergård, Olli Pottonen
On Optimal Binary One-Error-Correcting Codes of Lengths $2^m-4$ and $2^m-3$ CoRR (2011)
Patric R. J. Östergård, Vesa P. Vaskelainen
Russian doll search for the Steiner triple covering problem. Optim. Lett. 5 (4) (2011)
Patric R. J. Östergård, Olli Pottonen
Two optimal one-error-correcting codes of length 13 that are not doubly shortened perfect codes. Des. Codes Cryptogr. 59 (1-3) (2011)
Alexander Hulpke, Petteri Kaski, Patric R. J. Östergård
The number of Latin squares of order 11. Math. Comput. 80 (274) (2011)
Patric R. J. Östergård, Vesa P. Vaskelainen
A tournament of order 14 with disjoint Banks and Slater sets. Discret. Appl. Math. 158 (5) (2010)
Mahdad Khatirinejad, Patric R. J. Östergård
A census of one-factorizations of the complete 3-uniform hypergraph of order 9. Australas. J Comb. 47 (2010)
Alexander A. Davydov, Patric R. J. Östergård
Linear codes with covering radius 3. Des. Codes Cryptogr. 54 (3) (2010)
Patric R. J. Östergård, Olli Pottonen, Kevin T. Phelps
The perfect binary one-error-correcting codes of length 15: part II-properties. IEEE Trans. Inf. Theory 56 (6) (2010)
Patric R. J. Östergård
Classification of binary constant weight codes. IEEE Trans. Inf. Theory 56 (8) (2010)
Charles J. Colbourn, Anthony D. Forbes, Mike J. Grannell, Terry S. Griggs, Petteri Kaski, Patric R. J. Östergård, David A. Pike, Olli Pottonen
Properties of the Steiner Triple Systems of Order 19. Electron. J. Comb. 17 (1) (2010)
Patric R. J. Östergård, Olli Pottonen
The perfect binary one-error-correcting codes of length 15: part I-classification. IEEE Trans. Inf. Theory 55 (10) (2009)
Ivan Yu. Mogilnykh, Patric R. J. Östergård, Olli Pottonen, Faina I. Solov'eva
Reconstructing extended perfect binary one-error-correcting codes from their minimum distance graphs. IEEE Trans. Inf. Theory 55 (6) (2009)
Patric R. J. Östergård, Olli Pottonen, Kevin T. Phelps
The Perfect Binary One-Error-Correcting Codes of Length 15: Part II--Properties CoRR (2009)
Patric R. J. Östergård, Olli Pottonen
Two Optimal One-Error-Correcting Codes of Length 13 That Are Not Doubly Shortened Perfect Codes CoRR (2009)
Andries E. Brouwer, Patric R. J. Östergård
Classification of the (0, 2)-graphs of valency 8. Discret. Math. 309 (3) (2009)
Lasse Kiviluoto, Patric R. J. Östergård, Vesa P. Vaskelainen
Sperner capacity of small digraphs. Adv. Math. Commun. 3 (2) (2009)
Patric R. J. Östergård
P.G. Szabó, M.C. Markót, T. Csendes, E. Specht, L.G. Casado, I. García, New Approaches to Circle Packing in a Square, Springer, Berlin, 2007, ISBN: 978-0-387-45673-7, pp 238. Oper. Res. Lett. 36 (2) (2008)
Harri Haanpää, Patric R. J. Östergård, Sándor Szabó
Small P-Groups with Full-Rank Factorization. Int. J. Algebra Comput. 18 (6) (2008)
Gerzson Kéri, Patric R. J. Östergård
. Des. Codes Cryptogr. 48 (2) (2008)
Patric R. J. Östergård, Olli Pottonen
There exists no Steiner system S(4, 5, 17). J. Comb. Theory, Ser. A 115 (8) (2008)
Petteri Kaski, Patric R. J. Östergård, Svetlana Topalova, Rosen Zlatarski
Steiner triple systems of order 19 and 21 with subsystems of order 7. Discret. Math. 308 (13) (2008)
Patric R. J. Östergård, Olli Pottonen
The Perfect Binary One-Error-Correcting Codes of Length 15: Part I--Classification CoRR (2008)
Ivan Yu. Mogilnykh, Patric R. J. Östergård, Olli Pottonen, Faina I. Solov'eva
Reconstructing Extended Perfect Binary One-Error-Correcting Codes from Their Minimum Distance Graphs CoRR (2008)
Petteri Kaski, Patric R. J. Östergård
There exists no symmetric configuration with 33 points and line size 6. Australas. J Comb. 38 (2007)
Patric R. J. Östergård, Sándor Szabó
Elementary P-Groups with the RÉdei Property. Int. J. Algebra Comput. 17 (1) (2007)
Lasse Kiviluoto, Patric R. J. Östergård
New Uniquely Decodable Codes for the T-User Binary Adder Channel With 3<=T<=5. IEEE Trans. Inf. Theory 53 (3) (2007)
Gerzson Kéri, Patric R. J. Östergård
Further results on the covering radius of small codes. Discret. Math. 307 (1) (2007)
Petteri Kaski, Patric R. J. Östergård, Olli Pottonen
The Steiner quadruple systems of order 16. J. Comb. Theory, Ser. A 113 (8) (2006)
Stefka Bouyuklieva, Patric R. J. Östergård
New constructions of optimal self-dual binary codes of length 54. Des. Codes Cryptogr. 41 (1) (2006)
Patric R. J. Östergård, Petteri Kaski
There are exactly five biplanes with k=11. Electron. Notes Discret. Math. 27 (2006)
Patric R. J. Östergård, Esa Antero Seuranen
Unidirectional covering codes. IEEE Trans. Inf. Theory 52 (1) (2006)
M. Mattas, Patric R. J. Östergård
A New Bound for the Zero-Error Capacity Region of the Two-User Binary Adder Channel. IEEE Trans. Inf. Theory 51 (9) (2005)
Gerzson Kéri, Patric R. J. Östergård
Bounds for Covering Codes over Large Alphabets. Des. Codes Cryptogr. 37 (1) (2005)
Patric R. J. Östergård, Jörn Quistorff, Alfred Wassermann
New Results on Codes with Covering Radius 1 and Minimum Distance 2. Des. Codes Cryptogr. 35 (2) (2005)
Patric R. J. Östergård
Constructing combinatorial objects via cliques. BCC (2005)
Patric R. J. Östergård
Two New Four-Error-Correcting Binary Codes. Des. Codes Cryptogr. 36 (3) (2005)
Iliya Bouyukliev, Patric R. J. Östergård
. SIAM J. Discret. Math. 19 (2) (2005)
Petteri Kaski, Patric R. J. Östergård
One-Factorizations of Regular Graphs of Order 12. Electron. J. Comb. 12 (2005)
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 Cryptogr. 37 (3) (2005)
Harri Haanpää, Antti Huima, Patric R. J. Östergård
with distinct sums of pairs. Discret. Appl. Math. 138 (1-2) (2004)

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Publication Activity (10 Years)

Top Topics

Top Venues

Patric R. J. Östergård