Letter | Published:

A Combinatorial Assignment Problem

Naturevolume 191page100 (1961) | Download Citation

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Abstract

IN an establishment, there are v= nk officers, r departments and k types of jobs in each department. Each officer has to be assigned a job in each department such that in any department there are equal numbers of officers in different jobs and any two officers have common jobs in exactly λ departments.

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References

  1. 1

    Yates, F., Ann. Eugen., 7, 121 (1936).

  2. 2

    Stevens, W. L., Ann. Eugen., 9, 82 (1939).

  3. 3

    Bose, R. C., Ann. Eugen., 9, 353 (1939).

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Affiliations

  1. Indian Statistical Institute, Calcutta, 35

    • C. RADHAKRISHNA RAO

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DOI

https://doi.org/10.1038/191100a0

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