Edit Profile (opens in new tab) Östergård, Patric R. J. Co-Author Distance Author ID: ostergard.patric-r-j Published as: Östergård, Patric R. J.; Östergård, P. R. J.; Östergard, Patric R. J.; Östergård, Patrick R. J.; Östergård, Patric more...less Homepage: http://users.aalto.fi/~pat/ External Links: dblp Documents Indexed: 208 Publications since 1991, including 2 Books and 3 Additional arXiv Preprints Reviewing Activity: 151 Reviews Co-Authors: 115 Co-Authors with 168 Joint Publications 2,768 Co-Co-Authors all top 5 Co-Authors 39 single-authored 25 Kaski, Petteri 13 Pottonen, Olli 10 Nurmela, Kari J. 9 Gulliver, Thomas Aaron 9 Kokkala, Janne I. 7 Weakley, William D. 6 Davydov, Alexander A. 6 Haanpää, Harri 6 Pettersson, Ville H. 5 Kéri, Gerzson 5 Vaskelainen, Vesa P. 5 Wassermann, Alfred 4 Braun, Michael 4 Hämäläinen, Heikki O. 4 Harada, Masaaki 4 Heinlein, Daniel 4 Kiviluoto, Lasse 4 Krotov, Denis S. 4 Laaksonen, Antti 4 Mathew, K. Ashik 4 Szöllősi, Ferenc 3 Bogdanova, Galina T. 3 Brouwer, Andries Evert 3 Colbourn, Charles J. 3 Crevals, Simon 3 Honkala, Iiro S. 3 Kaikkonen, Markku K. 3 Khatirinejad, Mahdad 3 Lampio, Pekka H. J. 3 Popa, Alexandru 3 Seuranen, Esa Antero 2 Bouyukliev, Iliya Georgiev 2 Bouyuklieva, Stefka 2 Etzion, Tuvi 2 Litsyn, Simon N. 2 Paavola, William T. 2 Pike, David A. 2 Senkevitch, Nikolai I. 2 Svanström, Mattias 2 Szabó, Sándor 2 Vardy, Alexander 1 Alanko, Samu 1 aus dem Spring, Rainer 1 Baicheva, Tsonka Stefanova 1 Balogh, József 1 Behbahani, Majid 1 Bertolo, Riccardo 1 Blass, Uri 1 Brandt, Sebastian F. 1 Bryant, Darryn E. 1 Chang, Yanxun 1 Cock, John C. 1 Deng, Dameng 1 Di Pasquale, Franco 1 Dinitz, Jeffrey H. 1 El-Zanati, Saad I. El-Zanati 1 Fan, Bingli 1 Feng, Tao 1 Forbes, Anthony D. 1 Goedgebeur, Jan 1 Graham, Ronald Lewis 1 Grannell, Michael John 1 Greig, Malcolm 1 Griggs, Terry S. 1 Hartke, Stephen G. 1 Hirvonen, Juho 1 Holt, Derek F. 1 Huima, Antti 1 Hulpke, Alexander Jörg 1 Humpich, Joshua 1 Isopoussu, Anton 1 Janiszczak, Ingo 1 Jooyandeh, Mohammadreza 1 Kapralov, Stoyan N. 1 Karlemo, Filip R. W. 1 Kohnert, Axel 1 Kolev, Emil 1 Korhonen, Janne H. 1 Kreher, Donald L. 1 Lempiäinen, Tuomo 1 Lempken, Wolfgang 1 Linja-aho, Vesa 1 Lubachevsky, Boris D. 1 Mäkinen, Veli 1 Mattas, M. 1 McKay, Brendan D. 1 Meagher, Karen 1 Medeiros, André De Souza 1 Mogilnykh, Ivan Yurevich 1 Morales, Luis B. 1 Naserasr, Reza 1 Nishimura, Takuji 1 Phelps, Kevin T. 1 Pöllänen, Antti 1 Purcell, Christopher J. 1 Quistorff, Jörn 1 Riihonen, Taneli 1 Rosenblueth, David A. 1 Rybicki, Joel 1 Shao, Zehui ...and 17 more Co-Authors all top 5 Serials 25 IEEE Transactions on Information Theory 21 Discrete Mathematics 19 Designs, Codes and Cryptography 19 Journal of Combinatorial Designs 11 Journal of Combinatorial Theory. Series A 9 Discrete Applied Mathematics 8 JCMCC. The Journal of Combinatorial Mathematics and Combinatorial Computing 7 The Electronic Journal of Combinatorics 6 Mathematics of Computation 5 Discrete & Computational Geometry 4 Graphs and Combinatorics 4 The Australasian Journal of Combinatorics 4 Congressus Numerantium 3 European Journal of Combinatorics 3 SIAM Journal on Discrete Mathematics 3 Applicable Algebra in Engineering, Communication and Computing 3 Advances in Mathematics of Communications 2 Arkhimedes 2 Ars Combinatoria 2 Journal of Statistical Planning and Inference 2 International Journal of Algebra and Computation 2 Glasnik Matematički. Serija III 2 Bulletin of the Institute of Combinatorics and its Applications 1 American Mathematical Monthly 1 Information Processing Letters 1 Beiträge zur Algebra und Geometrie 1 Canadian Mathematical Bulletin 1 Journal of Geometry 1 Journal of Graph Theory 1 Journal of Number Theory 1 Mathematica Slovaca 1 Normat 1 Studia Scientiarum Mathematicarum Hungarica 1 Utilitas Mathematica 1 Order 1 Experimental Mathematics 1 Journal of Algebraic Combinatorics 1 Bayreuther Mathematische Schriften 1 Nordic Journal of Computing 1 Finite Fields and their Applications 1 Journal of Heuristics 1 Journal of Combinatorial Optimization 1 Annals of Combinatorics 1 Journal of Integer Sequences 1 MATCH - Communications in Mathematical and in Computer Chemistry 1 Helsinki University of Technology, Digital Systems Laboratory. Series A: Research Reports 1 Algorithms and Computation in Mathematics 1 Optimization Letters 1 Ars Mathematica Contemporanea 1 Cryptography and Communications 1 Forum of Mathematics, Pi all top 5 Fields 117 Combinatorics (05-XX) 108 Information and communication theory, circuits (94-XX) 20 Operations research, mathematical programming (90-XX) 15 Geometry (51-XX) 13 Computer science (68-XX) 12 Convex and discrete geometry (52-XX) 9 Group theory and generalizations (20-XX) 7 Number theory (11-XX) 2 General and overarching topics; collections (00-XX) 2 Linear and multilinear algebra; matrix theory (15-XX) 1 Algebraic geometry (14-XX) 1 Quantum theory (81-XX) 1 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 1 Biology and other natural sciences (92-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 171 Publications have been cited 1,374 times in 938 Documents Cited by ▼ Year ▼ A fast algorithm for the maximum clique problem. Zbl 1019.05054 Östergård, Patric R. J. 126 2002 Classification algorithms for codes and designs. Zbl 1089.05001 Kaski, Petteri; Östergård, Patric R. J. 106 2006 Existence of \(q\)-analogs of Steiner systems. Zbl 1372.51003 Braun, Michael; Etzion, Tuvi; Östergård, Patric R. J.; Vardy, Alexander; Wassermann, Alfred 56 2016 The number of Latin squares of order 11. Zbl 1210.05017 Hulpke, Alexander; Kaski, Petteri; Östergård, Patric R. J. 32 2011 More optimal packings of equal circles in a square. Zbl 0931.05019 Nurmela, Kari J.; Östergård, Patric R. J. 31 1999 Packing up to 50 equal circles in a square. Zbl 0880.90116 Nurmela, Kari J.; Östergård, Patric R. J. 31 1997 A new algorithm for the maximum-weight clique problem. Zbl 1003.68117 Östergård, Patric R. J. 30 2001 The Steiner triple systems of order 19. Zbl 1043.05020 Kaski, Petteri; Östergård, Patric R. J. 29 2004 Dense packings of congruent circles in a circle. Zbl 0901.52017 Graham, R. L.; Lubachevsky, B. D.; Nurmela, Kari J.; Östergård, Patric R. J. 29 1998 Error-correcting codes over an alphabet of four elements. Zbl 1011.94029 Bogdanova, Galina T.; Brouwer, Andries E.; Kapralov, Stoian N.; Östergård, Patric R. J. 21 2001 Bounds on mixed binary/ternary codes. Zbl 0911.94009 Brouwer, A. E.; Hämäläinen, Heikki O.; Östergård, Patric R. J.; Sloane, N. J. A. 20 1998 The perfect binary one-error-correcting codes of length 15. I: Classification. Zbl 1367.94376 Östergård, Patric R. J.; Pottonen, Olli 19 2009 Computing the domination number of grid graphs. Zbl 1222.05194 Alanko, Samu; Crevals, Simon; Isopoussu, Anton; Östergård, Patric; Pettersson, Ville 16 2011 There are 1,132,835,421,602,062,347 nonisomorphic one-factorizations of \(K_{14}\). Zbl 1184.05097 Kaski, Petteri; Östergård, Patric R. J. 16 2009 The perfect binary one-error-correcting codes of length 15. II: Properties. Zbl 1366.94606 Östergård, Patric R. J.; Pottonen, Olli; Phelps, Kevin T. 16 2010 Bounds and constructions for ternary constant-composition codes. Zbl 1059.94046 Svanström, Mattias; Östergård, Patric R. J.; Bogdanova, Galina T. 16 2002 On the classification of MDS codes. Zbl 1359.94805 Kokkala, Janne I.; Krotov, Denis S.; Östergård, Patric R. J. 16 2015 On a hypercube coloring problem. Zbl 1061.05035 Östergård, Patric R. J. 15 2004 Enumeration of Seidel matrices. Zbl 1376.05026 Szöllősi, Ferenc; Östergård, Patric R. J. 15 2018 There are exactly five biplanes with \(k = 11\). Zbl 1140.05012 Kaski, Petteri; Östergård, Patric R. J. 14 2008 Switching codes and designs. Zbl 1243.94040 Östergård, Patric R. J. 14 2012 LCL problems on grids. Zbl 1380.68218 Brandt, Sebastian; Hirvonen, Juho; Korhonen, Janne H.; Lempiäinen, Tuomo; Östergård, Patric R. J.; Purcell, Christopher; Rybicki, Joel; Suomela, Jukka; Uznański, Przemysław 14 2017 Properties of the Steiner triple systems of order 19. Zbl 1193.05039 Colbourn, Charles J.; Forbes, Anthony D.; Grannell, Mike J.; Griggs, Terry S.; Kaski, Petteri; Östergård, Patric R. J.; Pike, David A.; Pottonen, Olli 14 2010 Computer search for small complete caps. Zbl 0969.51013 Östergård, Patric R. J. 13 2000 The Steiner quadruple systems of order 16. Zbl 1107.05012 Kaski, Petteri; Östergård, Patric R. J.; Pottonen, Olli 13 2006 Large sets of \(t\)-designs over finite fields. Zbl 1283.05035 Braun, Michael; Kohnert, Axel; Östergård, Patric R. J.; Wassermann, Alfred 13 2014 Ternary constant weight codes. Zbl 1027.94029 Östergård, Patric R. J.; Svanström, Mattias 12 2002 Classifying subspaces of Hamming spaces. Zbl 1040.94012 Östergård, Patric R. J. 12 2002 Planar hypohamiltonian graphs on 40 vertices. Zbl 1356.05029 Jooyandeh, Mohammadreza; McKay, Brendan D.; Östergård, Patric R. J.; Pettersson, Ville H.; Zamfirescu, Carol T. 12 2017 Optimal binary one-error-correcting codes of length \(10\) have \(72\) codewords. Zbl 0958.94040 Östergård, Patric R. J.; Baicheva, Tsonka; Kolev, Emil 11 1999 On saturating sets in small projective geometries. Zbl 0971.51004 Davydov, Alexander A.; Östergård, Patric R. J. 11 2000 Resolving the existence of full-rank tilings of binary Hamming spaces. Zbl 1075.05001 Östergård, Patric R. J.; Vardy, Alexander 11 2004 Upper bounds for covering designs by simulated annealing. Zbl 0801.05021 Nurmela, Kari J.; Östergård, Patric R. J. 11 1993 Steiner triple systems of order 19 and 21 with subsystems of order 7. Zbl 1142.05005 Kaski, Petteri; Östergård, Patric R. J.; Topalova, Svetlana; Zlatarski, Rosen 10 2008 Football pools – a game for mathematicians. Zbl 0841.90147 Hämäläinen, Heikki; Honkala, Iiro; Litsyn, Simon; Östergård, Patric R. J. 10 1995 Recursive constructions of complete caps. Zbl 0987.51007 Davydov, Alexander A.; Östergård, Patric R. J. 10 2001 Values of domination numbers of the queen’s graph. Zbl 0973.05058 Östergård, Patric R. J.; Weakley, William D. 10 2001 Bounds on codes over an alphabet of five elements. Zbl 1005.94032 Bogdanova, Galina T.; Östergård, Patric R. J. 10 2001 On the size of optimal binary codes of length 9 and covering radius 1. Zbl 1002.94052 Östergård, Patric R. J.; Blass, Uri 10 2001 Classification of optimal binary self-orthognal codes. Zbl 1183.94055 Bouyukliev, Iliya; Boujuklieva, Stefka; Gulliver, T. Aaron; Östergård, Patric R. J. 9 2006 Permutation codes invariant under isometries. Zbl 1312.05010 Janiszczak, Ingo; Lempken, Wolfgang; Östergård, Patric R. J.; Staszewski, Reiner 9 2015 The cycle switching graph of the Steiner triple systems of order 19 is connected. Zbl 1233.05050 Kaski, Petteri; Mäkinen, Veli; Östergård, Patric R. J. 8 2011 On the covering radius of small codes. Zbl 1027.94043 Kéri, G.; Östergård, P. R. J. 8 2003 Switching in one-factorisations of complete graphs. Zbl 1300.05254 Kaski, Petteri; Medeiros, André de Souza; Östergård, Patric R. J.; Wanless, Ian M. 8 2014 Classification of binary constant weight codes. Zbl 1366.94605 Östergård, Patric R. J. 8 2010 Greedy and heuristic algorithms for codes and colorings. Zbl 0911.94008 Etzion, Tuvi; Östergård, Patric R. J. 7 1998 Russian doll search for the Steiner triple covering problem. Zbl 1228.90100 Östergård, Patric R. J.; Vaskelainen, Vesa P. 7 2011 An updated table of binary/ternary mixed covering codes. Zbl 1054.94022 Bertolo, Riccardo; Östergård, Patric R. J.; Weakley, William D. 7 2004 Constructing combinatorial objects via cliques. Zbl 1117.05010 Östergård, Patric R. J. 7 2005 New lower bounds for the Shannon capacity of odd cycles. Zbl 1367.05160 Mathew, K. Ashik; Östergård, Patric R. J. 7 2017 On the classification of self-dual codes over \(\mathbb F_5\). Zbl 1026.94015 Harada, Masaaki; Östergård, Patric R. J. 7 2003 Self-dual and maximal self-orthogonal codes over \({\mathbb F}_{7}\). Zbl 1011.94021 Harada, Masaaki; Östergård, Patric R. J. 7 2002 Orderly generation of Butson Hadamard matrices. Zbl 1423.05034 Lampio, Pekka H. J.; Östergård, Patric R. J.; Szöllősi, Ferenc 7 2020 Constructions of maximum few-distance sets in Euclidean spaces. Zbl 1454.51007 Szöllősi, Ferenc; Östergård, Patric R. J. 7 2020 The quaternary complex Hadamard matrices of orders 10, 12, and 14. Zbl 1256.05032 Lampio, Pekka H. J.; Szöllősi, Ferenc; Östergård, Patric R. J. 7 2013 On the minimum size of 4-uniform hypergraphs without property \(B\). Zbl 1282.05173 Östergård, Patric R. J. 7 2014 Two optimal one-error-correcting codes of length 13 that are not doubly shortened perfect codes. Zbl 1219.94089 Östergård, Patric R. J.; Pottonen, Olli 6 2011 Constructing covering codes by tabu search. Zbl 0911.90284 Östergård, Patric R. J. 6 1997 Constructing covering codes with given automorphisms. Zbl 0927.94020 Östergård, Patric R. J.; Weakley, William D. 6 1999 Sets in \(\mathbb{Z}_n\) with distinct sums of pairs. Zbl 1035.05021 Haanpää, Harri; Huima, Antti; Östergård, Patric R. J. 6 2004 Binary optimal linear rate 1/2 codes. Zbl 1046.94013 Gulliver, T. Aaron; Östergård, Patric R. J. 6 2004 Two new four-error-correcting binary codes. Zbl 1158.94419 Östergård, Patric R. J. 6 2005 Upper bounds for \(q\)-ary covering codes. Zbl 0731.94015 Östergård, Patric R. J. 6 1991 A new table of binary/ternary mixed covering codes. Zbl 0872.94056 Östergård, Patric R. J.; Hämäläinen, Heikki O. 6 1997 Improved bounds for ternary linear codes of dimension 7. Zbl 0909.94020 Gulliver, T. Aaron; Östergård, Patric R. J. 6 1997 On triple systems and strongly regular graphs. Zbl 1245.05009 Behbahani, Majid; Lam, Clement; Östergård, Patric R. J. 6 2012 Classification of Graeco-Latin cubes. Zbl 1331.05044 Kokkala, Janne I.; Östergård, Patric R. J. 6 2015 On optimal binary one-error-correcting codes of lengths \(2^m-4\) and \(2^m-3\). Zbl 1365.94384 Krotov, Denis S.; Östergård, Patric R. J.; Pottonen, Olli 6 2011 Reconstructing extended perfect binary one-error-correcting codes from their minimum distance graphs. Zbl 1367.94407 Mogilnykh, Ivan Yu.; Östergård, Patric R. J.; Pottonen, Olli; Solov’eva, Faina I. 6 2009 New single-error-correcting codes. Zbl 0864.94029 Östergård, Patric R. J.; Kaikkonen, Markku K. 5 1996 New upper bounds for binary covering codes. Zbl 0898.94017 Östergård, Patric R. J.; Kaikkonen, Markku K. 5 1998 New lower bounds for binary constant-dimension subspace codes. Zbl 1391.51005 Braun, Michael; Östergård, Patric R. J.; Wassermann, Alfred 5 2018 Enumeration of 2-(12, 3, 2) designs. Zbl 0965.05021 Östergård, Patric R. J. 5 2000 A new lower bound for the football pool problem for six matches. Zbl 1016.94044 Östergård, Patric R. J.; Wassermann, Alfred 5 2002 New constructions of optimal self-dual binary codes of length 54. Zbl 1205.94116 Bouyuklieva, Stefka; Östergård, Patric R. J. 5 2006 Further results on \((k,t)\)-subnormal covering codes. Zbl 0746.94019 Östergård, Patric R. J. 5 1992 New upper bounds for the football pool problem for 11 and 12 matches. Zbl 0815.94023 Östergård, Patric R. J. 5 1994 There exist Steiner triple systems of order 15 that do not occur in a perfect binary one-error-correcting code. Zbl 1128.05007 Östergård, Patric R. J.; Pottonen, Olli 5 2007 Independent domination of grids. Zbl 1310.05158 Crevals, Simon; Östergård, Patric R. J. 5 2015 Classification of whist tournaments with up to 12 players. Zbl 1029.05017 Haanpää, Harri; Östergård, Patric R. J. 5 2003 Linear codes with covering radius \(R=2, 3\) and codimension \(tR\). Zbl 0997.94039 Davydov, Alexander A.; Östergård, Patric R. J. 5 2001 Mappings of Butson-type Hadamard matrices. Zbl 1392.05020 Östergård, Patric R. J.; Paavola, William T. 5 2018 Further results on the classification of MDS codes. Zbl 1348.94097 Kokkala, Janne I.; Östergård, Patric R. J. 5 2016 Elementary \(p\)-groups with the Rédei property. Zbl 1118.20052 Östergård, Patric R. J.; Szabó, Sándor 4 2007 There exists no symmetric configuration with 33 points and line size 6. Zbl 1138.05004 Kaski, Petteri; Östergård, Patric R. J. 4 2007 Classification of difference matrices over cyclic groups. Zbl 1328.05029 Lampio, Pekka H. J.; Östergård, Patric R. J. 4 2011 Nearly Kirkman triple systems of order 18 and Hanani triple systems of order 19. Zbl 1226.05052 Colbourn, Charles J.; Kaski, Petteri; Östergård, Patric R. J.; Pike, David A.; Pottonen, Olli 4 2011 Asymptotic behavior of optimal circle packings in a square. Zbl 0938.52015 Nurmela, Kari J.; Östergård, Patric R. J.; aus dem Spring, Rainer 4 1999 Bounds for binary codes that are multiple coverings of the farthest-off points. Zbl 0829.94012 Hämäläinen, Heikki O.; Honkala, Iiro S.; Litsyn, Simon N.; Östergård, Patric R. J. 4 1995 Further results on the covering radius of small codes. Zbl 1278.94098 Kéri, Gerzson; Östergård, Patric R. J. 4 2007 Classification of binary/ternary one-error-correcting codes. Zbl 0976.94035 Östergård, Patric R. J. 4 2000 Classification of binary covering codes. Zbl 0989.94037 Östergård, Patric R. J.; Weakley, William D. 4 2000 There exists no (15,5,4) RBIBD. Zbl 1020.05011 Kaski, Petteri; Östergård, Patric R. J. 4 2001 New linear codes with covering radius 2 and odd basis. Zbl 0920.94012 Davydov, Alexander A.; Östergård, Patric R. J. 4 1999 More \(c\)-Bhaskar Rao designs with small block size. Zbl 1015.05012 Deng, Dameng; Greig, Malcolm; Östergård, Patric R. J. 4 2003 Miscellaneous classification results for 2-designs. Zbl 1041.05010 Kaski, Petteri; Östergård, Patric R. J. 4 2004 Classification of the (0, 2)-graphs of valency 8. Zbl 1194.05129 Brouwer, Andries E.; Östergård, Patric R. J. 4 2009 New results on codes with covering radius 1 and minimum distance \(2\). Zbl 1081.94041 Östergård, Patric R. J.; Quistorff, Jörn; Wassermann, Alfred 4 2005 Code design. Zbl 1007.94029 Honkala, Iiro S.; Östergård, Patric R. J. 4 1997 Ternary covering codes derived from BCH codes. Zbl 0888.05011 Cock, John C.; Östergård, Patric R. J. 4 1997 Sparse Steiner triple systems of order 21. Zbl 07798481 Kokkala, Janne I.; Östergård, Patric R. J. 2 2021 Quaternary complex Hadamard matrices of order 18. Zbl 07798485 Östergård, Patric R. J.; Paavola, William T. 1 2021 Orderly generation of Butson Hadamard matrices. Zbl 1423.05034 Lampio, Pekka H. J.; Östergård, Patric R. J.; Szöllősi, Ferenc 7 2020 Constructions of maximum few-distance sets in Euclidean spaces. Zbl 1454.51007 Szöllősi, Ferenc; Östergård, Patric R. J. 7 2020 Kirkman triple systems with subsystems. Zbl 1443.05023 Kokkala, Janne I.; Östergård, Patric R. J. 4 2020 The sextuply shortened binary Golay code is optimal. Zbl 1421.94114 Östergård, Patric R. J. 1 2019 Enumeration of Seidel matrices. Zbl 1376.05026 Szöllősi, Ferenc; Östergård, Patric R. J. 15 2018 New lower bounds for binary constant-dimension subspace codes. Zbl 1391.51005 Braun, Michael; Östergård, Patric R. J.; Wassermann, Alfred 5 2018 Mappings of Butson-type Hadamard matrices. Zbl 1392.05020 Östergård, Patric R. J.; Paavola, William T. 5 2018 The chromatic number of the square of the 8-cube. Zbl 1387.05092 Kokkala, Janne I.; Östergård, Patric R. J. 3 2018 There is no McLaughlin geometry. Zbl 1377.05043 Östergård, Patric R. J.; Soicher, Leonard H. 3 2018 On the domination number of 2-dimensional torus graphs. Zbl 1393.05197 Crevals, Simon; Östergard, Patric R. J. 3 2018 LCL problems on grids. Zbl 1380.68218 Brandt, Sebastian; Hirvonen, Juho; Korhonen, Janne H.; Lempiäinen, Tuomo; Östergård, Patric R. J.; Purcell, Christopher; Rybicki, Joel; Suomela, Jukka; Uznański, Przemysław 14 2017 Planar hypohamiltonian graphs on 40 vertices. Zbl 1356.05029 Jooyandeh, Mohammadreza; McKay, Brendan D.; Östergård, Patric R. J.; Pettersson, Ville H.; Zamfirescu, Carol T. 12 2017 New lower bounds for the Shannon capacity of odd cycles. Zbl 1367.05160 Mathew, K. Ashik; Östergård, Patric R. J. 7 2017 New lower bounds on error-correcting ternary, quaternary and quinary codes. Zbl 1429.94090 Laaksonen, Antti; Östergård, Patric R. J. 3 2017 Constructing error-correcting binary codes using transitive permutation groups. Zbl 1403.94109 Laaksonen, Antti; Östergård, Patric R. J. 3 2017 Classification of cyclic Steiner quadruple systems. Zbl 1362.05018 Chang, Yanxun; Fan, Bingli; Feng, Tao; Holt, Derek F.; Östergård, Patric R. J. 2 2017 Existence of \(q\)-analogs of Steiner systems. Zbl 1372.51003 Braun, Michael; Etzion, Tuvi; Östergård, Patric R. J.; Vardy, Alexander; Wassermann, Alfred 56 2016 Further results on the classification of MDS codes. Zbl 1348.94097 Kokkala, Janne I.; Östergård, Patric R. J. 5 2016 Algorithms for finding maximum transitive subtournaments. Zbl 1342.90164 Kiviluoto, Lasse; Östergård, Patric R. J.; Vaskelainen, Vesa P. 3 2016 Non-existence of a ternary constant weight \((16,5,15;2048)\) diameter perfect code. Zbl 1348.94083 Krotov, Denis S.; Östergård, Patric R. J.; Pottonen, Olli 1 2016 On the classification of MDS codes. Zbl 1359.94805 Kokkala, Janne I.; Krotov, Denis S.; Östergård, Patric R. J. 16 2015 Permutation codes invariant under isometries. Zbl 1312.05010 Janiszczak, Ingo; Lempken, Wolfgang; Östergård, Patric R. J.; Staszewski, Reiner 9 2015 Classification of Graeco-Latin cubes. Zbl 1331.05044 Kokkala, Janne I.; Östergård, Patric R. J. 6 2015 Independent domination of grids. Zbl 1310.05158 Crevals, Simon; Östergård, Patric R. J. 5 2015 Enumeration of Steiner triple systems with subsystems. Zbl 1319.05023 Kaski, Petteri; Östergård, Patric R. J.; Popa, Alexandru 4 2015 Classification of MDS codes over small alphabets. Zbl 1398.94218 Kokkala, Janne I.; Krotov, Denis S.; Östergård, Patric R. J. 3 2015 Bounds on the domination number of Kneser graphs. Zbl 1329.05238 Östergård, Patric; Shao, Zehui; Xu, Xiaodong 1 2015 Exhaustive search for snake-in-the-box codes. Zbl 1317.05042 Östergård, Patric R. J.; Pettersson, Ville H. 1 2015 On hypercube packings, blocking sets and a covering problem. Zbl 1302.68275 Ashik Mathew, K.; Östergård, Patric R. J. 1 2015 Large sets of \(t\)-designs over finite fields. Zbl 1283.05035 Braun, Michael; Kohnert, Axel; Östergård, Patric R. J.; Wassermann, Alfred 13 2014 Switching in one-factorisations of complete graphs. Zbl 1300.05254 Kaski, Petteri; Medeiros, André de Souza; Östergård, Patric R. J.; Wanless, Ian M. 8 2014 On the minimum size of 4-uniform hypergraphs without property \(B\). Zbl 1282.05173 Östergård, Patric R. J. 7 2014 On the maximum length of coil-in-the-box codes in dimension 8. Zbl 1303.05053 Östergård, Patric R. J.; Pettersson, Ville H. 4 2014 Counting Hamiltonian cycles in bipartite graphs. Zbl 1280.05075 Haanpää, Harri; Östergård, Patric R. J. 4 2014 A note on Toeplitz’ conjecture. Zbl 1309.51010 Pettersson, Ville H.; Tverberg, Helge A.; Östergård, Patric R. J. 3 2014 The Mendelsohn triple systems of order 13. Zbl 1308.05024 Khatirinejad, Mahdad; Östergård, Patric R. J.; Popa, Alexandru 2 2014 Hypercube packings and their holes. Zbl 1408.05034 Mathew, K. Ashik; Östergård, Patric R. J. 1 2014 The quaternary complex Hadamard matrices of orders 10, 12, and 14. Zbl 1256.05032 Lampio, Pekka H. J.; Szöllősi, Ferenc; Östergård, Patric R. J. 7 2013 Enumerating perfect matchings in \(n\)-cubes. Zbl 1276.05095 Östergård, Patric R. J.; Pettersson, Ville H. 4 2013 Enumerating cube tilings. Zbl 1283.52027 Mathew, K. Ashik; Östergård, Patric R. J.; Popa, Alexandru 4 2013 On optimal binary codes with unbalanced coordinates. Zbl 1283.94147 Östergård, Patric R. J. 1 2013 Switching codes and designs. Zbl 1243.94040 Östergård, Patric R. J. 14 2012 On triple systems and strongly regular graphs. Zbl 1245.05009 Behbahani, Majid; Lam, Clement; Östergård, Patric R. J. 6 2012 Steiner triple systems satisfying the 4-vertex condition. Zbl 1236.05034 Kaski, Petteri; Khatirinejad, Mahdad; Östergård, Patric R. J. 2 2012 Packing Costas arrays. Zbl 1277.05022 Dinitz, J. H.; Östergård, P. R. J.; Stinson, D. R. 1 2012 The number of Latin squares of order 11. Zbl 1210.05017 Hulpke, Alexander; Kaski, Petteri; Östergård, Patric R. J. 32 2011 Computing the domination number of grid graphs. Zbl 1222.05194 Alanko, Samu; Crevals, Simon; Isopoussu, Anton; Östergård, Patric; Pettersson, Ville 16 2011 The cycle switching graph of the Steiner triple systems of order 19 is connected. Zbl 1233.05050 Kaski, Petteri; Mäkinen, Veli; Östergård, Patric R. J. 8 2011 Russian doll search for the Steiner triple covering problem. Zbl 1228.90100 Östergård, Patric R. J.; Vaskelainen, Vesa P. 7 2011 Two optimal one-error-correcting codes of length 13 that are not doubly shortened perfect codes. Zbl 1219.94089 Östergård, Patric R. J.; Pottonen, Olli 6 2011 On optimal binary one-error-correcting codes of lengths \(2^m-4\) and \(2^m-3\). Zbl 1365.94384 Krotov, Denis S.; Östergård, Patric R. J.; Pottonen, Olli 6 2011 Classification of difference matrices over cyclic groups. Zbl 1328.05029 Lampio, Pekka H. J.; Östergård, Patric R. J. 4 2011 Nearly Kirkman triple systems of order 18 and Hanani triple systems of order 19. Zbl 1226.05052 Colbourn, Charles J.; Kaski, Petteri; Östergård, Patric R. J.; Pike, David A.; Pottonen, Olli 4 2011 On the size of optimal three-error-correcting binary codes of length 16. Zbl 1365.94527 Östergård, Patric R. J. 4 2011 The perfect binary one-error-correcting codes of length 15. II: Properties. Zbl 1366.94606 Östergård, Patric R. J.; Pottonen, Olli; Phelps, Kevin T. 16 2010 Properties of the Steiner triple systems of order 19. Zbl 1193.05039 Colbourn, Charles J.; Forbes, Anthony D.; Grannell, Mike J.; Griggs, Terry S.; Kaski, Petteri; Östergård, Patric R. J.; Pike, David A.; Pottonen, Olli 14 2010 Classification of binary constant weight codes. Zbl 1366.94605 Östergård, Patric R. J. 8 2010 Linear codes with covering radius 3. Zbl 1189.94061 Davydov, Alexander A.; Östergård, Patric R. J. 3 2010 A tournament of order 14 with disjoint Banks and Slater sets. Zbl 1215.05080 Östergård, Patric R. J.; Vaskelainen, Vesa P. 3 2010 The nonexistence of a \((K_6-e)\)-decomposition of the complete graph \(K_{29}\). Zbl 1216.05113 Hartke, S. G.; Östergård, P. R. J.; Bryant, D.; El-Zanati, S. I. 2 2010 A census of one-factorizations of the complete 3-uniform hypergraph of order 9. Zbl 1218.05140 Khatirinejad, Mahdad; Östergård, Patric R. J. 1 2010 The perfect binary one-error-correcting codes of length 15. I: Classification. Zbl 1367.94376 Östergård, Patric R. J.; Pottonen, Olli 19 2009 There are 1,132,835,421,602,062,347 nonisomorphic one-factorizations of \(K_{14}\). Zbl 1184.05097 Kaski, Petteri; Östergård, Patric R. J. 16 2009 Reconstructing extended perfect binary one-error-correcting codes from their minimum distance graphs. Zbl 1367.94407 Mogilnykh, Ivan Yu.; Östergård, Patric R. J.; Pottonen, Olli; Solov’eva, Faina I. 6 2009 Classification of the (0, 2)-graphs of valency 8. Zbl 1194.05129 Brouwer, Andries E.; Östergård, Patric R. J. 4 2009 A catalogue of the Steiner triple systems of order 19. Zbl 1222.05011 Kaski, Petteri; Östergård, Patric R. J.; Pottonen, Olli; Kiviluoto, Lasse 3 2009 Sperner capacity of small digraphs. Zbl 1197.94166 Kiviluoto, Lasse; Östergård, Patric R. J.; Vaskelainen, Vesa P. 2 2009 Classification of resolvable balanced incomplete block designs — the unitals on 28 points. Zbl 1212.05020 Kaski, Petteri; Östergård, Patric R. J. 1 2009 There are exactly five biplanes with \(k = 11\). Zbl 1140.05012 Kaski, Petteri; Östergård, Patric R. J. 14 2008 Steiner triple systems of order 19 and 21 with subsystems of order 7. Zbl 1142.05005 Kaski, Petteri; Östergård, Patric R. J.; Topalova, Svetlana; Zlatarski, Rosen 10 2008 There exists no Steiner system \(S(4,5,17)\). Zbl 1159.05302 Östergård, Patric R. J.; Pottonen, Olli 4 2008 There exist Steiner triple systems of order 15 that do not occur in a perfect binary one-error-correcting code. Zbl 1128.05007 Östergård, Patric R. J.; Pottonen, Olli 5 2007 Elementary \(p\)-groups with the Rédei property. Zbl 1118.20052 Östergård, Patric R. J.; Szabó, Sándor 4 2007 There exists no symmetric configuration with 33 points and line size 6. Zbl 1138.05004 Kaski, Petteri; Östergård, Patric R. J. 4 2007 Further results on the covering radius of small codes. Zbl 1278.94098 Kéri, Gerzson; Östergård, Patric R. J. 4 2007 Sets in Abelian groups with distinct sums of pairs. Zbl 1111.20044 Haanpää, Harri; Östergård, Patric R. J. 1 2007 Classification algorithms for codes and designs. Zbl 1089.05001 Kaski, Petteri; Östergård, Patric R. J. 106 2006 The Steiner quadruple systems of order 16. Zbl 1107.05012 Kaski, Petteri; Östergård, Patric R. J.; Pottonen, Olli 13 2006 Classification of optimal binary self-orthognal codes. Zbl 1183.94055 Bouyukliev, Iliya; Boujuklieva, Stefka; Gulliver, T. Aaron; Östergård, Patric R. J. 9 2006 New constructions of optimal self-dual binary codes of length 54. Zbl 1205.94116 Bouyuklieva, Stefka; Östergård, Patric R. J. 5 2006 The number of inequivalent \((2R+3,7)R\) optimal covering codes. Zbl 1104.94063 Kéri, Gerzson; Östergård, Patric R. J. 2 2006 Unidirectional covering codes. Zbl 1288.94118 Östergård, Patric R. J.; Seuranen, Esa Antero 2 2006 Constructing combinatorial objects via cliques. Zbl 1117.05010 Östergård, Patric R. J. 7 2005 Two new four-error-correcting binary codes. Zbl 1158.94419 Östergård, Patric R. J. 6 2005 New results on codes with covering radius 1 and minimum distance \(2\). Zbl 1081.94041 Östergård, Patric R. J.; Quistorff, Jörn; Wassermann, Alfred 4 2005 Bounds for covering codes over large alphabets. Zbl 1158.94424 Kéri, Gerzson; Östergård, Patric R. J. 3 2005 Near-extremal formally self-dual even codes of lengths 24 and 32. Zbl 1142.94384 Gulliver, T. Aaron; Harada, Masaaki; Nishimura, Takuji; Östergård, Patric R. J. 3 2005 Classification of self-orthogonal codes over \(\mathbb F_3\) and \(\mathbb F_4\). Zbl 1090.94025 Bouyukliev, Iliya; Östergård, Patric R. J. 3 2005 One-factorizations of regular graphs of order 12. Zbl 1062.05120 Kaski, Petteri; Östergård, Patric R. J. 3 2005 Classification of directed and hybrid triple systems. Zbl 1100.05008 Östergård, Patric R. J.; Pottonen, Olli 1 2005 A new bound for the zero-error capacity region of the two-user binary adder channel. Zbl 1310.94072 Mattas, M.; Östergård, Patric R. J. 1 2005 The Steiner triple systems of order 19. Zbl 1043.05020 Kaski, Petteri; Östergård, Patric R. J. 29 2004 On a hypercube coloring problem. Zbl 1061.05035 Östergård, Patric R. J. 15 2004 Resolving the existence of full-rank tilings of binary Hamming spaces. Zbl 1075.05001 Östergård, Patric R. J.; Vardy, Alexander 11 2004 An updated table of binary/ternary mixed covering codes. Zbl 1054.94022 Bertolo, Riccardo; Östergård, Patric R. J.; Weakley, William D. 7 2004 Sets in \(\mathbb{Z}_n\) with distinct sums of pairs. Zbl 1035.05021 Haanpää, Harri; Huima, Antti; Östergård, Patric R. J. 6 2004 Binary optimal linear rate 1/2 codes. Zbl 1046.94013 Gulliver, T. Aaron; Östergård, Patric R. J. 6 2004 Miscellaneous classification results for 2-designs. Zbl 1041.05010 Kaski, Petteri; Östergård, Patric R. J. 4 2004 ...and 71 more Documents all cited Publications top 5 cited Publications all top 5 Cited by 1,296 Authors 88 Östergård, Patric R. J. 21 Krotov, Denis S. 20 Davydov, Alexander A. 18 Marcugini, Stefano 18 Pambianco, Fernanda 17 Kaski, Petteri 14 Bartoli, Daniele 14 Falcón Ganfornina, Raúl Manuel 13 Szabó, Sándor 13 Topalova, Svetlana Todorova 13 Wassermann, Alfred 12 Wanless, Ian M. 11 Faina, Giorgio 10 Butenko, Sergiy I. 10 Ge, Gennian 10 Giulietti, Massimo 10 Hao, Jin-Kao 10 Harada, Masaaki 10 Kim, Jon-Lark 10 Mogilnykh, Ivan Yurevich 9 Braun, Michael 9 Colbourn, Charles J. 9 Kurz, Sascha 9 Stones, Rebecca J. 9 Zamfirescu, Carol T. 8 Chang, Yanxun 7 Bereg, Sergey N. 7 Bouyuklieva, Stefka 7 Crnković, Dean 7 Heden, Olof 7 Kiermaier, Michael 7 Nakić, Anamari 7 Potapov, Vladimir Nikolaevich 7 Solov’eva, Faina Ivanovna 7 Suomela, Jukka 7 Zhelezova, Stela Dimitrova 7 Zinov’ev, Dmitriĭ Viktorovich 7 Zinov’ev, Viktor Aleksandrovich 6 Bouyukliev, Iliya Georgiev 6 Furini, Fabio 6 Griggs, Terry S. 6 Heinlein, Daniel 6 Kokkala, Janne I. 6 Locatelli, Marco 6 Marino, Giuseppe 6 Munemasa, Akihiro 6 Pasiliao, Eduardo L. jun. 6 Quistorff, Jörn 6 San Segundo, Pablo 6 Shi, Minjia 6 Wu, Qinghua 5 Balasundaram, Balabhaskar 5 Buratti, Marco 5 Egan, Ronan 5 Gluesing-Luerssen, Heide 5 Gulliver, Thomas Aaron 5 Honkala, Iiro S. 5 Huang, Wenqi 5 Kéri, Gerzson 5 Morales, Linda 5 Pajouh, Foad Mahdavi 5 Pottonen, Olli 5 Sudborough, Ivan Hal 5 Szöllősi, Ferenc 5 Zaválnij, Bogdán 5 Zhang, Hui 4 Araya, Makoto 4 Bag, Tushar 4 Balliu, Alkida 4 Birgin, Ernesto G. 4 Blokhuis, Aart 4 Brouwer, Andries Evert 4 Chang, Yi-Jun 4 Cossidente, Antonio 4 Dinh, Hai Quang 4 Drápal, Aleš 4 Feng, Tao 4 Grannell, Michael John 4 Haanpää, Harri 4 Han, Sunghyu 4 Irnich, Stefan 4 Kozlik, Andrew Richard 4 Krčadinac, Vedran 4 Laue, Reinhard 4 Li, Chumin 4 Monte Carmelo, Emerson L. 4 Olivetti, Dennis 4 Ostrowski, James P. 4 Pathak, Sachin 4 Pavese, Francesco 4 Pettersson, Ville H. 4 Popa, Alexandru 4 Rossi, Fabrizio 4 Smriglio, Stefano 4 Suda, Sho 4 Upadhyay, Ashish Kumar 4 Weakley, William D. 4 Wiener, Gábor 4 Zhang, He 3 Alazemi, Abdullah ...and 1,196 more Authors all top 5 Cited in 192 Serials 98 Designs, Codes and Cryptography 96 Discrete Mathematics 55 Discrete Applied Mathematics 52 Journal of Combinatorial Designs 33 Journal of Combinatorial Theory. 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Informatica 3 Algorithms 3 Symmetry 3 Diskretnyĭ Analiz i Issledovanie Operatsiĭ 2 Journal of Mathematical Physics 2 Linear and Multilinear Algebra 2 Mathematika 2 Siberian Mathematical Journal 2 Transactions of the American Mathematical Society 2 Advances in Applied Mathematics 2 Order 2 Journal of Symbolic Computation 2 International Journal of Approximate Reasoning 2 Computational Geometry 2 Glasnik Matematički. 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