Periodica Mathematica Hungarica

, Volume 10, Issue 4, pp 311–312 | Cite as

Research problems

  • I. Juhász
  • J. Dénes


In this column Periodica Mathematica Hungarica publishes current research problems whose proposers believe them to be within reach of existing methods. Manuscripts should preferably contain the background of the problem and all references known to the author. The length of the manuscripts should not exceed two double-spaced typewritten pages.


Research Problem Typewrite Page Current Research Problem 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. [1]
    G. B. Beljavskaja,r-ortogonal'nye kvazigruppy, I (r-orthogonal quasigroups, I),Mat. Issled. 39 (1976), 32–39, 231,MR 55 # 8233Google Scholar
  2. [2]
    G. B. Beljavskaja,r-orthogonal'nye kvazigruppy, II (r-orthogonal quasigroups, II),Mat. Issled. 43 (1976), 39–49, 204.MR 56 # 12162Google Scholar
  3. [3]
    J. Dénes, Latin squares and non-binary encodings,Proc. Conf. Information Theory (Cachan, France,1977), CNRS, Paris, 1979, 215–221.Google Scholar
  4. [4]
    J. Dénes andA. D. Keedwell,Latin squares and their applications, Akadémiai Kiadó, Budapest, EUP, London, and Academic Press, New York, 1974.MR 50 # 4338Google Scholar
  5. [5]
    J. D. Horton, Sub-latin squares and incomplete orthogonal arrays,J. Combinatorial Theory Ser. A 16 (1974), 23–33.MR 50 # 143CrossRefGoogle Scholar

Copyright information

© Akadémiai Kiadó 1979

Authors and Affiliations

  • I. Juhász
  • J. Dénes

There are no affiliations available

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